Residential delivery area · Connecticut
ZIP Code 06255: North Grosvenordale, CT
ZIP code 06255 uses the postal name North Grosvenordale, Connecticut and lies entirely in Windham County (Census 2020 ZIP-county file). About 4,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $88,750 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Quinebaug (14%), North Grosvenor Dale (10%) and Mechanicsville (3%); 74% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- North Grosvenordale · its only residential ZIP
- County
- Windham County
- Census places
- Quinebaug (14%) census-designated place; North Grosvenor Dale (10%) census-designated place; Mechanicsville (3%) census-designated place
- House district
- CT-2 119th Congress
- State
- Connecticut
- Time zone
- Eastern
- Land area
- 23.1 sq mi · 195 people per sq mi
Where is ZIP code 06255?
06255 centers on 41.991°, -71.902° and covers 23.1 square miles of land plus 0.7 of water. It borders 5 ZIP codes: 06262, 06277, 01571, 01570, 06281.
The map draws ZIP code areas only. For the streets inside 06255, 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 06255 compare with the rest of Windham County?
| Measure | 06255 | In Windham County | In CT |
|---|---|---|---|
| People (ACS 2020-2024) | 4,494 | 12th of 32 | 192nd of 288 |
| Median household income | $89k | 14th of 21 | 172nd of 228 |
| Median home value | $312k | 10th of 23 | 173rd of 245 |
Its median household income is higher than in 72% of U.S. residential ZIP codes, and it is denser than 62% 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 06255?
The 2020 Census counted 4,673 people in 06255; the ACS, which samples households over 2020-2024, estimates 4,494. Between the 2010 and 2020 censuses its population fell 1.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,494±731 (90% margin)
- 2020 Census count
- 4,673−1.5% since 2010 (4,744)
- Households
- 2,042
- Median age
- 55.0
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 06255?
Of the 4,494 people the ACS estimates in 06255, 13.6% are under 18 and 31.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.0%).
- Under 1813.6%
- 18 to 6454.6%
- 65 and older31.8%
- White, not Hispanic95.0%
- Other or two or more4.9%
- Hispanic or Latino0.1%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 06255 earn?
Median household income is $88,750 (ACS 2020-2024), the 14th highest of the 21 ranked ZIP codes in Windham County. It is not measurably different from 2015-2019 ($93,711 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $88,750±$20,310
- Income per person
- $49,513
- Below the poverty line
- 8.3%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 25.8%
- Adjusted gross income per tax return, 2022
- $71,2302,190 returns; wages 76% 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 06255?
FHFA's house price index for 06255, built from repeat sales and appraisals of the same homes, rose 105% from 2015 to 2025 and rose 62% from 2020 to 2025, and moved +3.0% in 2025.
- Median home value (owners' estimate)
- $312,200
- Median gross rent
- $926
- Homes owned by their occupants
- 78.3%
- Housing units
- 2,089
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 06255?
58 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction11
- Retail trade8
- Accommodation and food services8
- Health care and social assistance7
- Manufacturing4
- Transportation and warehousing3
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 06255?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 06262 | Quinebaug | 813 | – | 3.1 mi |
| 06277 | Thompson | 4,004 | $110k | 3.7 mi |
| 01571 | Dudley, MA | 11,929 | $85k | 4.7 mi |
| 01570 | Webster, MA | 17,748 | $73k | 4.9 mi |
| 06281 | Woodstock | 7,237 | $126k | 5.9 mi |
| 06260 | Putnam | 9,266 | $71k | 6.0 mi (near) |
| 02859 | Pascoag, RI | 7,018 | $125k | 7.8 mi (near) |
| 06258 | Pomfret | 114 | – | 7.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.