The Data Behind the Rankings
Every dataset the statewide ranking pages read: who publishes it, which pages use it, the years it covers, when it was collected, and how current it can be.
Every figure on the ranking pages is computed in the browser from the data files listed here, and this page is built from those same files: each year range, latest period and collection date below is read from the file’s own metadata when the site is built, never typed in. Collected is the day the collector script pulled the data. Source updated is the date the publisher last changed the dataset, where the publisher states one. Latest period is the newest year the file contains; the note under each dataset says when the publisher releases a year, which is what decides how current a series can be.
This page was built on 2026-11-02. A newer state release than the latest period shown here may exist if the publisher posted it after the collection date; the collectors under Data/ in the repository pull it on the next run.
At a glance
Each dataset’s newest period and when it was collected. Publisher lag explains most gaps: audited town finances run about three years behind, the accountability index one year, and survey estimates pool five.
| Dataset | Publisher | Years in file | Latest period | Collected | Source updated |
|---|---|---|---|---|---|
| All towns, headline figures (this site's build) | Wooden Nutmeg, from the CT OPM, US Census ACS and CSDE files listed on this page | 6 (FY 2022-23 to FY 2026-27) | FY 2026-27 | 2026-10-02 | not stated |
| Agricultural land cover and resident industry employment | CT ECO / UConn / USGS; US Census Bureau; CT DOL historical QCEW | 4 (QCEW 2013 to ACS 2020-2024) | ACS 2020-2024 | 2026-09-11 | not stated |
| Municipal Fiscal Indicators (audited actuals) | CT Office of Policy and Management | 10 (FY 2013-14 to FY 2022-23) | FY 2022-23 | 2026-08-10 | 2026-03-03 |
| Adopted municipal budgets | CT Office of Policy and Management | 5 (FY 2021-22 to FY 2025-26) | FY 2025-26 | not recorded · last repository change 2026-11-02 | not stated |
| Equalized net grand list and tax levy | CT Office of Policy and Management | 9 (FY 2018-19 to FY 2026-27) | Equalized rate: FY 2025-26 Tax levy: FY 2026-27 |
not recorded · last repository change 2026-11-02 | 2026-09-04 |
| Mill rates (posted) | CT Office of Policy and Management | 14 (FY 2013-14 to FY 2026-27) | FY 2026-27 | not recorded · last repository change 2026-11-02 | not stated |
| Municipal Fiscal Indicators: economic and grand-list data | CT Office of Policy and Management | 4 (grand list 2020 to grand list 2023) | grand list 2023 | 2026-09-15 | 2026-04-28 |
| Net current expenditures per pupil (town) | CT State Department of Education, Bureau of Fiscal Services | 18 (FY 2007-08 to FY 2024-25) | FY 2024-25 | 2026-09-24 | not stated |
| Estimates of statutory aid to municipalities | CT Office of Policy and Management | 3 (FY 2024-25 to FY 2026-27) | FY 2026-27 | 2026-09-15 | 2026-08-25 |
| American Community Survey 5-year estimates (town) | US Census Bureau | 16 (ACS 2009 release to ACS 2024 release) | ACS 2024 release | not recorded · last repository change 2026-11-02 | not stated |
| EdSight Resident Town Dashboard | CT State Department of Education (EdSight) | 3 (2023-24 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight Performance Index | CT State Department of Education (EdSight) | 10 (2014-15 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight Academic Growth | CT State Department of Education (EdSight) | 9 (2015-16 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight October 1 enrollment | CT State Department of Education (EdSight) | 13 (2013-14 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| American Community Survey 5-year estimates (family circumstances) | US Census Bureau | 4 (ACS 2021 release to ACS 2024 release) | ACS 2024 release | 2026-09-04 | not stated |
| Next Generation Accountability System | CT State Department of Education, via data.ct.gov | 9 (2014-15 school year to 2024-25 school year) | 2024-25 school year | 2026-09-04 | 2026-01-28 |
| School administration: staffing and administration spending (this site's build) | Wooden Nutmeg, from CT State Department of Education (EdSight) staffing, enrollment and Education Financial System files | 19 (2007-08 school year to 2025-26 school year) | 2025-26 school year | 2026-10-13 | not stated |
| Seven readings of per-pupil spending (this site's build) | Wooden Nutmeg, from CT State Department of Education NCEP, EdSight staffing and spending-by-function files, the need-weighted series, BLS price and cost indexes and ACS income | 18 (2007-08 school year to 2024-25 school year) | 2024-25 school year | 2026-10-14 | not stated |
| School performance model (this site's build) | Wooden Nutmeg, from the EdSight, ACS and OPM files above | 3 (2023-24 school year to 2025-26 school year) | 2025-26 school year | 2026-10-30 | not stated |
| Legislative districts by town (2021 plans) | US Census Bureau block equivalency files; CT General Assembly plan lists | 1 (2021 plans to 2021 plans) | 2021 plans | 2026-09-24 | not stated |
| Public road miles by maintenance responsibility | CT Department of Transportation | 1 (miles as of 2025-12-31 to miles as of 2025-12-31) | miles as of 2025-12-31 | 2026-09-24 | not stated |
| Town profile: government, officials, county, area, charter | CT OPM; CTDOT; CGA Office of Legislative Research; AdvanceCT; Sustainable CT; each town's website | 1 (officer list 2026-06-05 to officer list 2026-06-05) | officer list 2026-06-05 | 2026-09-25 | not stated |
| EdSight Smarter Balanced assessment | CT State Department of Education (EdSight) | 10 (2014-15 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight Connecticut School Day SAT | CT State Department of Education (EdSight) | 9 (2015-16 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight Next Generation Science Standards assessment | CT State Department of Education (EdSight) | 6 (2018-19 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight chronic absenteeism | CT State Department of Education (EdSight) | 13 (2013-14 school year to 2025-26 school year) | 2025-26 school year | 2026-09-04 | not stated |
| EdSight four-year graduation rates | CT State Department of Education (EdSight) | 13 (2012-13 school year to 2024-25 school year) | 2024-25 school year | 2026-09-04 | not stated |
| EdSight college entrance and persistence | CT State Department of Education (EdSight) | 13 (2011-12 school year to 2023-24 school year) | 2023-24 school year | 2026-09-04 | not stated |
| EdSight district revenue by source | CT State Department of Education (EdSight) | 20 (2005-06 school year to 2024-25 school year) | 2024-25 school year | 2026-09-04 | not stated |
| EdSight Education Financial System spending by object | CT State Department of Education (EdSight) | 8 (2017-18 school year to 2024-25 school year) | 2024-25 school year | 2026-09-04 | not stated |
| EdSight per-pupil spending by funding source | CT State Department of Education (EdSight) | 8 (2017-18 school year to 2024-25 school year) | 2024-25 school year | 2026-09-04 | not stated |
| EdSight per-pupil spending, legacy basis | CT State Department of Education (EdSight) | 12 (2005-06 school year to 2016-17 school year) | 2016-17 school year | 2026-09-04 | not stated |
“Not recorded” marks a file whose collector wrote no collection stamp. For those the date of the file’s last repository change is given instead; it is a different thing from a collection date, because a refresh that produced no change is not committed, so the file may have been pulled more recently than that date. “Not stated” means the source publishes no last-updated date that the collector can read.
All towns
All towns, headline figures (this site's build)
Wooden Nutmeg, from the CT OPM, US Census ACS and CSDE files listed on this page · ct_town_latest.json · full model file
One row per town and one column per headline measure, each cell carrying its own year and source: the figures every town's own pages print, gathered into one file. The same rows are published as ct_towns_latest.csv.
- Used by
- All towns, one table
- Years in file
- 6: FY 2022-23 to FY 2026-27
- Latest period
- FY 2026-27
- Collected
- 2026-10-02
- Source updated
- not stated by the publisher
How current it can be: Rebuilt from lib/townFacts.js at every site build, so it can never be newer than the files it reads; each column keeps its own dataset's year.
Download: ct_town_latest.json (437 KB). The file’s metadata block carries its own provenance and caveats.
Land and employment
Agricultural land cover and resident industry employment
CT ECO / UConn / USGS; US Census Bureau; CT DOL historical QCEW · · publisher’s page
Agricultural cover as a share of town land and agriculture/forestry/fishing/hunting as a share of employed residents, with 90% survey intervals. Historical local jobs are a separate measure.
- Used by
- Agricultural land and employment
- Years in file
- 4: QCEW 2013 to ACS 2020-2024
- Latest period
- ACS 2020-2024
- Collected
- 2026-09-11
- Source updated
- not stated by the publisher
How current it can be: Land cover is 2023; resident estimates pool 2020-2024. Historical workplace context uses 2013 and 2016 and is not current employment. Refresh with Data/fetch_ct_agriculture.py.
Download: ct_agriculture.json (190 KB). The file’s metadata block carries its own provenance and caveats.
Town finances
Municipal Fiscal Indicators (audited actuals)
CT Office of Policy and Management · ej6f-y2wf · publisher’s page
Audited year-end spending, revenue, enrollment, fund balance and bonded debt for every town; also the canonical list of 169 towns every ranking page starts from.
- Used by
- Debt · Rainy-day reserves
- Years in file
- 10: FY 2013-14 to FY 2022-23
- Latest period
- FY 2022-23
- Collected
- 2026-08-10
- Source updated
- 2026-03-03
How current it can be: OPM publishes a fiscal year about three years after it closes, once every town's audit is filed and crosswalked. The latest audited year is therefore always well behind the latest adopted budget; that lag is the dataset, not the collection.
Download: ct_ucoa_town_indicators.json (408 KB). The file’s metadata block carries its own provenance and caveats.
Adopted municipal budgets
CT Office of Policy and Management · pcg4-s5rc · publisher’s page
Each town's adopted budget summary: total, education, debt service and state revenue, by budget year.
- Used by
- Spending per resident · Who pays for the schools? · State aid dependence · Debt
- Years in file
- 5: FY 2021-22 to FY 2025-26
- Latest period
- FY 2025-26
- Collected
- not recorded (the collector wrote no stamp)
- Last repository change
- 2026-11-02 — the date the file last changed in the site’s repository, not a collection date; a refresh that produced no change is not committed
- Source updated
- not stated by the publisher
How current it can be: Published for the budget year in progress, as towns file their adopted budgets each summer; the current fiscal year appears during the year it is being spent.
Download: ct_adopted_budgets.json (491 KB). The file’s metadata block carries its own provenance and caveats.
Equalized net grand list and tax levy
CT Office of Policy and Management · 8rr8-a322 + he33-brru · publisher’s page
The market value of every town's taxable property and its total levy, from which the equalized tax rate is computed.
- Used by
- Property tax rates · Taxes vs. income · Property wealth & tax rates
- Years in file
- 9: FY 2018-19 to FY 2026-27
- Equalized rate
- 8: FY 2018-19 to FY 2025-26
- Tax levy
- 9: FY 2018-19 to FY 2026-27
- Latest period
- Equalized rate FY 2025-26 · Tax levy FY 2026-27
- Collected
- not recorded (the collector wrote no stamp)
- Last repository change
- 2026-11-02 — the date the file last changed in the site’s repository, not a collection date; a refresh that produced no change is not committed
- Source updated
- 2026-09-04
How current it can be: The levy file follows each budget year; the equalized grand list follows OPM's sales-ratio study for each October 1 list, about two years after the assessment date.
Download: ct_equalized_rates.json (403 KB). The file’s metadata block carries its own provenance and caveats.
Mill rates (posted)
CT Office of Policy and Management · emyx-j53e · publisher’s page
The nominal rate each town posts for the budget year.
- Used by
- Property tax rates
- Years in file
- 14: FY 2013-14 to FY 2026-27
- Latest period
- FY 2026-27
- Collected
- not recorded (the collector wrote no stamp)
- Last repository change
- 2026-11-02 — the date the file last changed in the site’s repository, not a collection date; a refresh that produced no change is not committed
- Source updated
- not stated by the publisher
How current it can be: Posted each summer for the fiscal year beginning July 1.
Download: ct_mill_rates.json (331 KB). The file’s metadata block carries its own provenance and caveats.
Municipal Fiscal Indicators: economic and grand-list data
CT Office of Policy and Management · xgef-f6jp · publisher’s page
Every town's tax-exempt and total assessed property, from which the tax-exempt share is computed; also OPM's grand list by class, mill rates, ACS income, DPH population and CSDE per-pupil figures, kept for auditing the site's other files rather than charted. The pages read the share from the extract ct_tax_exempt_share.json, written beside this file by the same collector.
- Used by
- Property wealth & tax rates
- Years in file
- 4: grand list 2020 to grand list 2023
- Latest period
- grand list 2023
- Collected
- 2026-09-15
- Source updated
- 2026-04-28
How current it can be: One long-format file OPM extends with each annual Municipal Fiscal Indicators edition; the exempt-property series starts at grand list 2020 and the newest grand list appears about two years after its October 1 date. Refresh with Data/fetch_ct_grand_list_indicators.py.
Download: ct_grand_list_indicators.json (1588 KB). The file’s metadata block carries its own provenance and caveats.
Net current expenditures per pupil (town)
CT State Department of Education, Bureau of Fiscal Services · NCEP (CGS 10-261) · publisher’s page
The state's published per-pupil figure for every town: net current expenditures (current education spending less transportation, capital, debt service, adult education and several receipts, plus tuition paid out) divided by the average daily membership of the resident students the town is responsible for, with both parts. For a town whose regional district runs every grade, years from 2017-18 are the district's own figure, named in the file. Cut from ct_school_finance_town.json, the full CSDE series.
- Used by
- Education spending per student · Education spending vs. income · Each town's Education Spending, Spending vs. Peers and How Towns Are Compared pages, and the per-pupil column of the all-towns table and its CSV (via ct_town_latest.json)
- Years in file
- 18: FY 2007-08 to FY 2024-25
- Latest period
- FY 2024-25
- Collected
- 2026-09-24
- Source updated
- not stated by the publisher
How current it can be: One school year at a time, published by the Department about six months after the year closes and sometimes revised. The Department posts only its current workbook and older expenditure reports; the years in between come from the School + State Finance Project's mirror of its reports. Refresh with Data/fetch_csde_fiscal.py, then Data/build_ncep_towns.py.
Download: ct_ncep_towns.json (95 KB). The file’s metadata block carries its own provenance and caveats.
Estimates of statutory aid to municipalities
CT Office of Policy and Management · sdcm-adr4 · publisher’s page
Every statutory formula grant the state lists for each town, line by line under the state's own program names, with the state's own total as a check on the lines.
- Used by
- Who pays for the schools?
- Years in file
- 3: FY 2024-25 to FY 2026-27
- Latest period
- FY 2026-27
- Collected
- 2026-09-15
- Source updated
- 2026-08-25
How current it can be: Posted for three state fiscal years at a time and revised as the budget is enacted and adjusted; the publisher calls the earlier years actual grant amounts and the latest an estimate. None is an audited receipt.
Download: ct_statutory_aid.json (334 KB). The file’s metadata block carries its own provenance and caveats.
Seven readings of per-pupil spending (this site's build)
Wooden Nutmeg, from CT State Department of Education NCEP, EdSight staffing and spending-by-function files, the need-weighted series, BLS price and cost indexes and ACS income · ct_per_pupil_lenses.json · full model file
Per town: the state's per-pupil figure with its two halves (net current expenditures and resident students), CPI-U and school Employment Cost Index factors, need-weighted and labor-cost-adjusted per pupil, staff per 100 students in five job groups and spending per pupil by function (both weighted across the districts that teach the town's students), and each town's enrollment-trend group and income fifth.
- Used by
- Seven ways to read per-pupil spending
- Years in file
- 18: 2007-08 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-10-14
- Source updated
- not stated by the publisher
How current it can be: Rebuilt by Data/build_per_pupil_lenses.py whenever an input is refreshed; it can never be newer than its oldest input. Spending by function starts in 2017-18 and the district apportionment in 2013-14.
Download: ct_per_pupil_lenses.json (433 KB). The file’s metadata block carries its own provenance and caveats.
Population and income
American Community Survey 5-year estimates (town)
US Census Bureau · ACS B19013, B19301, B01003, B25077, B25064 · publisher’s page
Median household income, per-capita income, population, median home value and median gross rent for every town. Gross rent includes utilities the renter pays, and is carried with its margin of error.
- Used by
- Taxes vs. income · Property wealth & tax rates · Spending per resident · Education spending vs. income · Who pays for the schools? · Debt
- Years in file
- 16: ACS 2009 release to ACS 2024 release
- Latest period
- ACS 2024 release
- Collected
- not recorded (the collector wrote no stamp)
- Last repository change
- 2026-11-02 — the date the file last changed in the site’s repository, not a collection date; a refresh that produced no change is not committed
- Source updated
- not stated by the publisher
How current it can be: One release each December, pooling the previous five years of survey responses; adjacent releases overlap by four years, so a change between two releases is not a one-year change.
Download: ct_town_income.json (368 KB). The file’s metadata block carries its own provenance and caveats.
School results
EdSight Resident Town Dashboard
CT State Department of Education (EdSight) · Resident Town Dashboard · publisher’s page
For each town's resident students, by the type of school they attend: enrollment, attendance, chronic absenteeism, Smarter Balanced proficiency and growth, and SAT scores.
- Used by
- School results at a glance · Test scores · Academic growth · SAT scores · Attendance
- Years in file
- 3: 2023-24 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Spring test results and attendance appear the following summer; the dashboard carries the three most recent school years. The discipline tab lags a further year and is not used here.
Download: edsight/resident_town.json (10415 KB). The file’s metadata block carries its own provenance and caveats.
EdSight Performance Index
CT State Department of Education (EdSight) · PerformanceIndexExport · publisher’s page
Each operating district's ELA and Math Performance Index (0–100), the outcome the demographic regression predicts.
- Used by
- Results vs. demographics
- Years in file
- 10: 2014-15 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Released with the spring test results the following summer. No index exists for 2019-20 or 2020-21: state tests were not given in spring 2020.
Download: edsight/performance_index.json (6385 KB). The file’s metadata block carries its own provenance and caveats.
EdSight Academic Growth
CT State Department of Education (EdSight) · GrowthModelExport · publisher’s page
Each district's average percentage of growth target achieved, grades 4–8; feeds the model behind the residual page and every town's School Results page.
- Used by
- Results vs. demographics
- Years in file
- 9: 2015-16 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Released in the fall after the spring tests, later than proficiency because it needs two matched years per student.
Download: edsight/growth.json (1238 KB). The file’s metadata block carries its own provenance and caveats.
EdSight October 1 enrollment
CT State Department of Education (EdSight) · EnrollmentYearExport · publisher’s page
Each district's enrollment and its shares of students eligible for free or reduced-price meals, English learners and students with disabilities: three of the six variables in the demographic regression.
- Used by
- Results vs. demographics
- Years in file
- 13: 2013-14 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: The October 1 count is published the following spring.
Download: edsight/enrollment.json (3235 KB). The file’s metadata block carries its own provenance and caveats.
American Community Survey 5-year estimates (family circumstances)
US Census Bureau · ACS B19013, B15003, B23008, B11003 · publisher’s page
Median household income, adults with a bachelor's degree, and children living with one parent, for each district's own Census geography or its towns: the other three regression variables.
- Used by
- Results vs. demographics
- Years in file
- 4: ACS 2021 release to ACS 2024 release
- Latest period
- ACS 2024 release
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: One release each December, pooling five years; the model uses the release whose window best matches the outcome years.
Download: acs_town_family.json (3883 KB). The file’s metadata block carries its own provenance and caveats.
Next Generation Accountability System
CT State Department of Education, via data.ct.gov · h28j-iix5 · publisher’s page
The state's composite accountability index per district; carried in the model as a disclosure-only outcome beside the index residuals.
- Used by
- Results vs. demographics
- Years in file
- 9: 2014-15 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-09-04
- Source updated
- 2026-01-28
How current it can be: Computed the winter after the school year ends, so it runs a year behind the test results. No index for 2019-20 or 2020-21.
Download: ct_accountability.json (1905 KB). The file’s metadata block carries its own provenance and caveats.
School administration: staffing and administration spending (this site's build)
Wooden Nutmeg, from CT State Department of Education (EdSight) staffing, enrollment and Education Financial System files · administration.json · publisher’s page
For every district that operates a town's public schools: administrator, teacher and other staffing counts by assignment-category group over nineteen school years, October 1 enrollment, general and school-based administration spending, and the towns each district serves.
- Used by
- School administration · Staffing vs. enrollment
- Years in file
- 19: 2007-08 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-10-13
- Source updated
- not stated by the publisher
How current it can be: Joins three sources with different clocks. Staffing and enrollment follow the October 1 collection and appear during the school year; the expenditure file follows the fiscal year and runs about a year behind it. The file can never be newer than its oldest input, and the two year axes are kept separate inside it. Carries no salary data: the state publishes none.
Download: edsight/administration.json (762 KB). The file’s metadata block carries its own provenance and caveats.
School performance model (this site's build)
Wooden Nutmeg, from the EdSight, ACS and OPM files above · school_performance_page.json · full model file
The file the six school-results pages actually read: every district's three-year outcomes, covariates, regression residuals and intervals, and every town's resident-student results by school type, cut from the full model.
- Used by
- School results at a glance · Test scores · Academic growth · SAT scores · Attendance · Results vs. demographics
- Years in file
- 3: 2023-24 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-10-30
- Source updated
- not stated by the publisher
How current it can be: Rebuilt by Data/build_school_peer_model.py and Data/build_school_performance_page.py whenever an input above is refreshed; it can never be newer than its oldest input.
Download: school_performance_page.json (886 KB). The file’s metadata block carries its own provenance and caveats.
Town identifiers
Legislative districts by town (2021 plans)
US Census Bureau block equivalency files; CT General Assembly plan lists · Census BEF, 2021 plans · publisher’s page
US congressional, state Senate and state House district numbers covering each town under the plans drawn after the 2020 Census, from Census 2020 blocks and checked against the General Assembly's plan lists. Numbers only; legislators' names are not stored. Not used by any ranking.
- Used by
- The town profile in every town page's rail
- Years in file
- 1: 2021 plans to 2021 plans
- Latest period
- 2021 plans
- Collected
- 2026-09-24
- Source updated
- not stated by the publisher
How current it can be: Fixed until the plans drawn after the 2030 Census. Refresh with Data/fetch_ct_town_districts.py.
Download: ct_town_districts.json (51 KB). The file’s metadata block carries its own provenance and caveats.
Public road miles by maintenance responsibility
CT Department of Transportation · Public Road Mileage report · publisher’s page
Public road miles in each town maintained by the town and by the state, as CTDOT's report prints them. Not used by any ranking.
- Used by
- The town profile in every town page's rail, and its Town Aid Road grant per mile
- Years in file
- 1: miles as of 2025-12-31 to miles as of 2025-12-31
- Latest period
- miles as of 2025-12-31
- Collected
- 2026-09-24
- Source updated
- not stated by the publisher
How current it can be: CTDOT publishes the count as of December 31 each year. Refresh with Data/fetch_ct_road_miles.py.
Download: ct_town_roads.json (49 KB). The file’s metadata block carries its own provenance and caveats.
Town profile: government, officials, county, area, charter
CT OPM; CTDOT; CGA Office of Legislative Research; AdvanceCT; Sustainable CT; each town's website · rn4x-2mrw, 5c5g-mddb, xgef-f6jp · publisher’s page
Form of government and chief executive term, chief elected official, town hall address, county and planning region, 2020 Census land area, charter status and link, AdvanceCT profile and Sustainable CT certification, one record per town with a source and date on every field. Not used by any ranking.
- Used by
- The town profile in every town page's rail
- Years in file
- 1: officer list 2026-06-05 to officer list 2026-06-05
- Latest period
- officer list 2026-06-05
- Collected
- 2026-09-25
- Source updated
- not stated by the publisher
How current it can be: OPM's officer list is re-issued after each municipal election; charter links and town-site facts are hand-checked. Refresh with Data/fetch_ct_town_profile.py.
Download: ct_town_profile.json (943 KB). The file’s metadata block carries its own provenance and caveats.
EdSight raw files no page reads yet
EdSight Smarter Balanced assessment
CT State Department of Education (EdSight) · SmarterBalancedAssessmentExport · publisher’s page
Smarter Balanced ELA and Math results for every district: all students and the High Needs, meal-eligible, English-learner and students-with-disabilities groups at all grades combined, plus all students by grade 3 to 8 with the average vertical scale score.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 10: 2014-15 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/sbac.json (13062 KB). The file’s metadata block carries its own provenance and caveats.
EdSight Connecticut School Day SAT
CT State Department of Education (EdSight) · CTSchoolDaySATExport · publisher’s page
School Day SAT results for every district with a high school: ELA and Math achievement levels and average score, for all students and High Needs students.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 9: 2015-16 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/sat.json (2081 KB). The file’s metadata block carries its own provenance and caveats.
EdSight Next Generation Science Standards assessment
CT State Department of Education (EdSight) · NextGenerationScienceStandardsExport · publisher’s page
Science assessment results for every district, all grades combined, for all students and High Needs students.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 6: 2018-19 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/ngss.json (871 KB). The file’s metadata block carries its own provenance and caveats.
EdSight chronic absenteeism
CT State Department of Education (EdSight) · ChronicAbsenteeismExport · publisher’s page
Count and share of students chronically absent in every district, for all students and High Needs students. The COVID school years are included.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 13: 2013-14 school year to 2025-26 school year
- Latest period
- 2025-26 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/chronic_absenteeism.json (785 KB). The file’s metadata block carries its own provenance and caveats.
EdSight four-year graduation rates
CT State Department of Education (EdSight) · GraduationExport · publisher’s page
Four-year cohort size, graduates and graduation rate for every district with a high school, for all students and High Needs students.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 13: 2012-13 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/graduation.json (565 KB). The file’s metadata block carries its own provenance and caveats.
EdSight college entrance and persistence
CT State Department of Education (EdSight) · CollegeEntranceExport · publisher’s page
Share of each district's graduates who enter college, and who persist into a second year, from National Student Clearinghouse matches, for all students and High Needs students. Persistence is not yet reported for the latest class.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 13: 2011-12 school year to 2023-24 school year
- Latest period
- 2023-24 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/college_entrance.json (533 KB). The file’s metadata block carries its own provenance and caveats.
EdSight district revenue by source
CT State Department of Education (EdSight) · RevenueSourceExport · publisher’s page
Where each district's money comes from: local, state, federal, and tuition and other, as amounts and percentages, including and excluding school construction. The earliest years carry percentages only.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 20: 2005-06 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/revenue_source.json (555 KB). The file’s metadata block carries its own provenance and caveats.
EdSight Education Financial System spending by object
CT State Department of Education (EdSight) · EFSDistrictLevelbyObjectExport · publisher’s page
District spending by object (salaries, employee benefits, purchased services, tuition, supplies, property, other): expenditures, pupils, pupil basis and per-pupil amount.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 8: 2017-18 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/efs_district_object.json (417 KB). The file’s metadata block carries its own provenance and caveats.
EdSight per-pupil spending by funding source
CT State Department of Education (EdSight) · EFSReportCardExport · publisher’s page
Per-pupil spending split into federal funds and state, local and other funds, as the federal ESSA report card prints it.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 8: 2017-18 school year to 2024-25 school year
- Latest period
- 2024-25 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/efs_report_card.json (130 KB). The file’s metadata block carries its own provenance and caveats.
EdSight per-pupil spending, legacy basis
CT State Department of Education (EdSight) · PerPupilExport · publisher’s page
Per-pupil spending by function on the state's older ED001 basis, for the years before the Education Financial System. A different basis from the EFS files: the two should not be joined into one series.
- Used by
- No page on this site yet; published as raw data
- Years in file
- 12: 2005-06 school year to 2016-17 school year
- Latest period
- 2016-17 school year
- Collected
- 2026-09-04
- Source updated
- not stated by the publisher
How current it can be: Each EdSight report follows its own release schedule; the file holds every year the report's own year picker offered when it was pulled. Refresh with Data/fetch_edsight_statewide.py.
Download: edsight/per_pupil_legacy.json (253 KB). The file’s metadata block carries its own provenance and caveats.
Reading the dates
A series can be behind the calendar without being stale. Audited town finances take about three years to be filed, audited and crosswalked by OPM; the Next Generation Accountability index is computed the winter after a school year ends; a Census 5-year estimate is published the December after its window closes and pools five years of responses. In each case the latest period in the file is the latest the publisher has released as of the collection date. When a page uses a year older than the latest in a file, its “How this ranking is made” note says why — usually because two figures in a ratio must come from the same year.
Two school years are missing from every test-based series: no state tests were given in spring 2020, so 2019-20 and 2020-21 have no proficiency, growth or accountability figures. Charts across those years carry a gap, not a zero.