Residential delivery area · Connecticut
ZIP Code 06239: Danielson, CT
ZIP code 06239 uses the postal name Danielson, Connecticut and lies entirely in Windham County (Census 2020 ZIP-county file). About 11,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $74,267 (Census Bureau, ACS 2020-2024). By Census place, 5% of its land lies in Danielson, and 3% in smaller places; 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Danielson · its only residential ZIP
- County
- Windham County
- Census places
- Danielson
- House district
- CT-2 119th Congress
- State
- Connecticut
- Time zone
- Eastern
- Land area
- 23.1 sq mi · 483 people per sq mi
Where is ZIP code 06239?
06239 centers on 41.794°, -71.855° and covers 23.1 square miles of land plus 0.5 of water. It borders 8 ZIP codes: 06241, 06387, 06377, 06234, 06332, 06354, 02825, 06374.
The map draws ZIP code areas only. For the streets inside 06239, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 06239 compare with the rest of Windham County?
| Measure | 06239 | In Windham County | In CT |
|---|---|---|---|
| People (ACS 2020-2024) | 11,185 | 2nd of 32 | 117th of 288 |
| Median household income | $74k | 18th of 21 | 195th of 228 |
| Median home value | $278k | 16th of 23 | 197th of 245 |
Its median household income is higher than in 54% of U.S. residential ZIP codes, and it is denser than 72% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 06239?
The 2020 Census counted 11,410 people in 06239; the ACS, which samples households over 2020-2024, estimates 11,185. Between the 2010 and 2020 censuses its population grew 2.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,185
- 2020 Census count
- 11,410+2.0% since 2010 (11,183)
- Households
- 4,591
- Median age
- 38.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 06239?
Of the 11,185 people the ACS estimates in 06239, 18.9% are under 18 and 19.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (84.3%).
- Under 1818.9%
- 18 to 6461.5%
- 65 and older19.6%
- White, not Hispanic84.3%
- Hispanic or Latino5.2%
- Other or two or more5.1%
- Black, not Hispanic4.6%
- Asian, not Hispanic0.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 06239 earn?
Median household income is $74,267 (ACS 2020-2024), the 18th highest of the 21 ranked ZIP codes in Windham County. It is not measurably different from 2015-2019 ($66,969 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $74,267±$12,694
- Income per person
- $37,394
- Below the poverty line
- 13.5%
- Unemployed (of the labor force)
- 11.3%
- Adults 25+ with a bachelor's degree
- 21.6%
- Adjusted gross income per tax return, 2022
- $63,3285,380 returns; wages 79% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 06239?
FHFA's house price index for 06239, built from repeat sales and appraisals of the same homes, rose 107% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +13.1% in 2025.
- Median home value (owners' estimate)
- $277,500
- Median gross rent
- $1,126
- Homes owned by their occupants
- 69.3%
- Housing units
- 4,749
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 06239?
194 business establishments had a location in this ZIP code in 2023, 12 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance36
- Retail trade30
- Construction25
- Other services (except public administration)22
- Professional, scientific, and technical services16
- Accommodation and food services15
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 06239?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 06241 | Dayville | 6,585 | $88k | 4.2 mi |
| 06387 | Wauregan | 178 | $109k | 4.5 mi |
| 06377 | Sterling | 2,927 | $97k | 4.7 mi |
| 06234 | Brooklyn | 8,517 | $96k | 5.1 mi |
| 06332 | Central Village | 1,015 | $62k | 5.5 mi |
| 06354 | Moosup | 6,031 | $88k | 5.9 mi |
| 02825 | Foster, RI | 6,107 | $113k | 6.6 mi |
| 06374 | Plainfield | 7,838 | $72k | 8.4 mi |
| 06263 | Rogers | 498 | $88k | 3.9 mi (near) |
| 06243 | East Killingly | 83 | $122k | 4.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.