Zip Code 06021 — Colebrook, CT
06021 is a ZIP Code associated with Colebrook, CT, located within Northwest Hills. 06021 ranks #21 out of 34 ZIP codes in Northwest Hills County by population (and #243 out of 288 in CT). The area supports an estimated population of 1,494 residents across Data Pending housing units, with a population density of 18.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.001520, -73.080780)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 06021 |
| Primary City | Colebrook |
| State / Province | CT |
| County | Northwest Hills |
| Total Population | 1,494 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 18.3 people/sq mi |
| Timezone | America/New_York |
How 06021 Compares
| Metric | ZIP 06021 | Northwest Hills County | CT State Average |
|---|
| Population | 1,494 | 113,256 (Total) | 3,624,508 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 18.3 /sq mi | -- | -- |
| County Pop Rank | #21 of 34 | -- | -- |
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 →