ZIP code · Harwinton · Connecticut · United States
ZIP code 06791 — Harwinton
ZIP code 06791 serves Harwinton, Connecticut.
- Postal code
- 06791Single source Value from one source, not cross-checked.
- City
- Harwinton
- County
- Northwest Hills FIPS 09005
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.7701, -73.0728 — precision precise (locality)
View on OpenStreetMap - Population
- 5,565 (ZCTA, ACS 5-year)
- Population density
- 180 / sq mi
- Land area
- 30.9 sq mi (80 km²) (ZCTA, ACS 5-year)
- Median household income
- $108,382
- Per-capita income
- $56,170
- Median age
- 47.3
- Households
- 2,166
- Housing units
- 2,326
- Median home value
- $344,900
- Median gross rent
- $1,574 / month
- Congressional district
- CT-5 (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 06791 with another ZIP · ZIPs within 25 miles · distance from 06791
Map of ZIP code 06791
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 15°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 37 | 45 | 59 | 69 | 77 | 82 | 80 | 72 | 60 | 49 | 38 |
| Avg low °F | 15 | 16 | 23 | 33 | 44 | 53 | 58 | 56 | 49 | 38 | 29 | 21 |
| Precip in | 3.9 | 3.5 | 4.6 | 4.3 | 4.1 | 4.9 | 4.3 | 4.8 | 5.0 | 5.4 | 4.2 | 5.0 |
NOAA 1991–2020 climate normals from the nearest station: BAKERSVILLE (6.0 mi) · NOAA NCEI
Places in ZIP 06791
- 1 schools
- 5 restaurants & cafés
- 1 parks
- 3 playgrounds
- 2 gyms & sports centres
- 2 libraries
- 1 post offices
- 3 places of worship
- 1 banks
- 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