School districts in Connecticut
In Connecticut the federal boundary file names an elementary district and no secondary district at all for part of 26 ZIP Code areas. That is an arrangement rather than a hole in the data: the town runs its own grade school and pays tuition for its high school students elsewhere. Bridgeport is the largest district in the state at 58,874 homes; the smallest arrangements are the ones a single-name lookup cannot describe. Its most divided ZIP Code area, 06754, is split between 5 districts for elementary grades alone. In 52 of them the answer for grade school is not the answer for high school. The two districts that share the most ZIP Codes here are Regional School District 11 and Scotland, in 6 of them.
How many school districts are in Connecticut?
165: the Census boundary file draws 165 school districts in Connecticut that reach at least one ZIP Code area with homes, 113 unified, 44 elementary and 8 secondary. A ZIP Code here can sit in more than one of them, which is why a school district lookup by ZIP Code for Connecticut lists them all: find your school district by ZIP code.
Towns that run grade school and buy the rest
Connecticut keeps 8 separate secondary districts — districts that pick students up partway through and run to the end of high school, over several elementary districts at once. Where one of those sits, an address has two district names and neither is wrong.
- ZIP Code areas with a district288
- Served by more than one district82 (28%)
- Grade school and high school differ52 (18%)
- No high school district named26
- Unified districts113
- Elementary districts44
- Secondary districts8
- Homes in no district at all0
District pages for Connecticut, largest first
Only 1 district in Connecticut has a page here. Its size is the homes inside its boundary, counted from the census blocks the Census Bureau assigns to it.
The most divided ZIP Code area in Connecticut
ZIP Code area 06754 holds 844 homes, and 5 districts each take a meaningful share of them for elementary grades — Regional School District 20 first at 58%, then Cornwall. A lookup that names the first is describing that share of the homes and silently not the 351 homes that remain.
Each percentage here is a share of the 844 homes counted in ZIP Code 06754, not the chance that any one address is in that district. Enrollment follows the street: two houses on opposite sides of the same road can be in different districts, and only the district office can say which.
Every track below is 35 cells long and stands for all 844 homes counted in ZIP Code 06754, so one cell is 24 homes, rounded to the nearest whole cell. Cells lit solid are the homes one district holds, and the unlit cells are the homes held by the other districts in the same list.
- Regional School District 20493 of 844 homes58%
- Cornwall School District293 of 844 homes35%
- Kent School District38 of 844 homes4.5%
- Sharon School District20 of 844 homes2.4%
For grade school, an answer of one district name would be wrong for 351 of the 844 here.
Where a single district name still works in Connecticut
Across the 288 ZIP Code areas in Connecticut with homes in them, an answer of one district name misses 16,266 of the 1,530,197 homes they hold. That is 1.1% of the state, and in 193 of the areas the largest district for the early grades holds every home counted: this is a state where the familiar answer is usually the right one, and the areas below are where it is not.
In ZIP Code 06512 · East Haven, Connecticut the largest district for grade school is East Haven, and naming it alone misses 3,490 of the 13,131 homes counted there. For grade school the rest is 3,490 homes with New Haven.
In ZIP Code 06513 · New Haven, Connecticut the largest district for grade school is New Haven, and naming it alone misses 2,661 of the 16,004 homes counted there. For grade school the rest is 2,661 homes with East Haven.
In ZIP Code 06355 · Old Mystic, Connecticut the largest district for grade school is Groton, and naming it alone misses 2,138 of the 6,161 homes counted there. For grade school the rest is 2,138 homes with Stonington.
Where a ZIP Code here names more than one district
Of the 288 ZIP Code areas in Connecticut that the federal file names a district for, 82 name more than one school district. These are the 12 with the most, starting at 5 districts in one postal area: Cornwall Bridge, Falls Village and Mansfield Center. Each row opens the full answer for that ZIP Code, with every district named for grade school and for high school and the share of the homes each one holds.
- ZIP Code 06754 · Cornwall Bridge, Connecticut5 districts · 844 homes · two bands, two answers
- ZIP Code 06031 · Falls Village, Connecticut4 districts · 799 homes · two bands, two answers
- ZIP Code 06250 · Mansfield Center, Connecticut4 districts · 2,180 homes · two bands, two answers
- ZIP Code 06331 · Canterbury, Connecticut4 districts · 2,058 homes · 2,044 with no high school district
- ZIP Code 06759 · Litchfield, Connecticut4 districts · 2,749 homes · two bands, two answers
- ZIP Code 06058 · Norfolk, Connecticut3 districts · 964 homes · two bands, two answers
- ZIP Code 06065 · Riverton, Connecticut3 districts · 221 homes · 152 with no high school district
- ZIP Code 06226 · Willimantic, Connecticut3 districts · 7,428 homes · two bands, two answers
- ZIP Code 06247 · Hampton, Connecticut3 districts · 1,128 homes · two bands, two answers
- ZIP Code 06256 · Willimantic, Connecticut3 districts · 1,035 homes · two bands, two answers
- ZIP Code 06278 · Lake Chaffee, Connecticut3 districts · 1,966 homes · 43 with no high school district
- ZIP Code 06280 · South Windham, Connecticut3 districts · 1,342 homes · two bands, two answers
What to do next
Ask the district office to confirm your street address: look on its site for a school locator, a find my school tool or an attendance zone map, or call the office.
A ZIP Code is a set of mail delivery routes, not a boundary: 82 of the 288 ZIP Code areas in Connecticut with a district named for them are served by more than one school district, and the line between two of them runs along streets. Only the district can say which side of that line an address is on.
District websites and phone numbers here come from the NCES Common Core of Data directory, 2024-25 school year, filed under the same district ID as the Census boundary files. Where it lists no usable website, none is printed rather than guessed.
If a house purchase depends on the answer, ask the district itself for written confirmation of that exact address. A listing is not a district record, and neither is this page.
Where these numbers come from
The homes were counted in the 2020 Census and the district lines are the 2026 boundary file, so a fast-growing area may have changed since; ZIP Codes here are the Census Bureau's ZIP Code Tabulation Areas; a share is a share of homes, not the chance that one address is in a district; and a district is not a school attendance zone. Every source, file and caveat is on the method page.