Zip Code 06255 — North Grosvenordale, CT
06255 is a ZIP Code associated with North Grosvenordale, CT, located within Northeastern Connecticut. 06255 ranks #10 out of 26 ZIP codes in Northeastern Connecticut County by population (and #192 out of 288 in CT). The area supports an estimated population of 4,494 residents across Data Pending housing units, with a population density of 75.2 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (41.987910, -71.902990)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 06255 |
| Primary City | North Grosvenordale |
| State / Province | CT |
| County | Northeastern Connecticut |
| Total Population | 4,494 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 75.2 people/sq mi |
| Timezone | America/New_York |
How 06255 Compares
| Metric | ZIP 06255 | Northeastern Connecticut County | CT State Average |
|---|
| Population | 4,494 | 94,710 (Total) | 3,624,508 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 75.2 /sq mi | -- | -- |
| County Pop Rank | #10 of 26 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →