Windham County, CT ZIP codes
There are 35 ZIP codes in Windham County, CT, in 35 towns, from 06226 to 06387. The largest are 06226 (Willimantic), 06239 (Danielson) and 06260 (Putnam).
Connecticut abolished county government in 1960, and since 2022 the Census Bureau counts nine planning regions instead of its eight counties. Windham County has no government of its own, but the counties are still how Connecticut's towns and ZIP codes are placed. Its ZIP codes lie in the Northeastern Connecticut and Southeastern Connecticut planning regions.
- ZIP codes
- 35
- Towns
- 35
- County FIPS
09015- State
- Connecticut
- Population
- 116,427
- Land area
- 513 sq mi
Land area from the Census Bureau's 2020 Gazetteer, the last to list Windham County. Population is the sum of the ZIP codes listed here (American Community Survey 2020–2024), since the Bureau now counts Connecticut by planning region.
Windham County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Windham County ZIP codes
The ZIP codes of Windham County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Windham County in numbers
About 116,427 people live in Windham County, in 47,162 households, the 8th most populous of Connecticut's 8 counties.
| Population | 116,427 |
|---|---|
| Households | 47,162 |
| Population density | 227 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, summed over the 35 ZIP codes listed here, as the Bureau no longer publishes figures for Windham County; medians do not add up and are left out. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Windham County
| Town | ZIP codes | Population |
|---|---|---|
| Willimantic | 1 | 18,096 |
| Plainfield | 1 | 7,838 |
| Woodstock | 1 | 7,237 |
| Putnam | 1 | 7,120 |
| Canterbury | 1 | 5,145 |
| Pomfret Center | 1 | 4,568 |
| North Grosvenordale | 1 | 4,494 |
| Ashford | 1 | 4,337 |
| Danielson | 1 | 4,209 |
| Thompson | 1 | 4,004 |
| Windham | 1 | 3,110 |
| Sterling | 1 | 2,927 |
| Moosup | 1 | 2,885 |
| Hampton | 1 | 2,412 |
| Chaplin | 1 | 2,018 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Windham County.
Not sure you are in Windham County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Windham County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
06226 | Willimantic , CT | Standard | 19,344 | $47,162 | $190,000 |
06230 | Abington , CT | No street area | — | — | — |
06233 | Ballouville , CT | No street area | — | — | — |
06234 | Brooklyn , CT | Standard | 8,517 | $96,207 | $315,200 |
06235 | Chaplin , CT | Standard | 2,018 | $98,059 | $256,300 |
06239 | Danielson , CT | Standard | 11,185 | $74,267 | $277,500 |
06241 | Dayville , CT | Standard | 6,585 | $88,389 | $298,200 |
06242 | Eastford , CT | Standard | 1,290 | $89,250 | $353,100 |
06243 | East Killingly , CT | Standard | 83 | $122,083 | — |
06244 | East Woodstock , CT | No street area | — | — | — |
06245 | Fabyan , CT | No street area | — | — | — |
06246 | Grosvenor Dale , CT | No street area | — | — | — |
06247 | Hampton , CT | Standard | 2,412 | $108,854 | $293,000 |
06255 | North Grosvenordale , CT | Standard | 4,494 | $88,750 | $312,200 |
06256 | North Windham , CT | Standard | 1,704 | $80,333 | $187,700 |
06258 | Pomfret , CT | Standard | 114 | — | — |
06259 | Pomfret Center , CT | Standard | 4,568 | $108,476 | $401,700 |
06260 | Putnam , CT | Standard | 9,266 | $70,502 | $269,500 |
06262 | Quinebaug , CT | Standard | 813 | — | $218,400 |
06263 | Rogers , CT | Standard | 498 | $88,011 | — |
06264 | Scotland , CT | Standard | 139 | $100,227 | $320,600 |
06266 | South Windham , CT | Standard | 222 | — | $232,800 |
06267 | South Woodstock , CT | No street area | — | — | — |
06277 | Thompson , CT | Standard | 4,004 | $110,000 | $295,100 |
06278 | Ashford , CT | Standard | 4,337 | $121,875 | $335,500 |
06280 | Windham , CT | Standard | 3,110 | $76,577 | $250,500 |
06281 | Woodstock , CT | Standard | 7,237 | $125,778 | $428,800 |
06282 | Woodstock Valley , CT | Standard | 1,134 | $91,780 | $353,400 |
06331 | Canterbury , CT | Standard | 5,145 | $103,198 | $334,200 |
06332 | Central Village , CT | Standard | 1,015 | $61,840 | $235,300 |
06354 | Moosup , CT | Standard | 6,031 | $87,711 | $298,600 |
06373 | Oneco , CT | Standard | 219 | — | $270,800 |
06374 | Plainfield , CT | Standard | 7,838 | $71,882 | $248,700 |
06377 | Sterling , CT | Standard | 2,927 | $97,308 | $275,900 |
06387 | Wauregan , CT | Standard | 178 | $108,787 | $270,500 |
Cite this page
zipcodes.pro. “Windham County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ct/county/windham
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