ZIP code · Colebrook · Connecticut · United States
ZIP code 06021 — Colebrook
ZIP code 06021 serves Colebrook, Connecticut.
- Postal code
- 06021Single source Value from one source, not cross-checked.
- City
- Colebrook
- County
- Northwest Hills FIPS 09005
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.9895, -73.0957 — precision precise (locality)
View on OpenStreetMap - Population
- 1,463 (ZCTA, ACS 5-year)
- Population density
- 46 / sq mi
- Land area
- 31.6 sq mi (81.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $114,904
- Per-capita income
- $60,632
- Median age
- 53.9
- Households
- 601
- Housing units
- 703
- Median home value
- $332,400
- Median gross rent
- $1,281 / month
- Congressional district
- CT-1 (119th Congress)
- USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 06021 with another ZIP · ZIPs within 25 miles · distance from 06021
Map of ZIP code 06021
Climate — monthly normals
Warmest month Jul (avg high 78°F), coldest Jan (avg low 14°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 32 | 40 | 54 | 65 | 73 | 78 | 76 | 69 | 57 | 45 | 35 |
| Avg low °F | 14 | 15 | 23 | 34 | 45 | 55 | 60 | 58 | 51 | 40 | 30 | 21 |
| Precip in | 4.0 | 3.3 | 4.2 | 3.9 | 4.1 | 5.0 | 4.8 | 4.7 | 4.9 | 5.1 | 4.1 | 4.9 |
NOAA 1991–2020 climate normals from the nearest station: NORFOLK 2 SW (6.5 mi) · NOAA NCEI
Places in ZIP 06021
- 2 schools
- 1 parks
- 1 post offices
- 1 places of worship
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page