ZIP code · Greenwich · Connecticut · United States
ZIP code 06831 — Greenwich
ZIP code 06831 serves Greenwich, Connecticut.
- Postal code
- 06831Single source Value from one source, not cross-checked.
- City
- Greenwich
- County
- Western Connecticut FIPS 09001
- State
- Connecticut
- Country
- United States
- Coordinates
- 41.0549, -73.6594 — precision precise (locality)
View on OpenStreetMap - Population
- 14,656 (ZCTA, ACS 5-year)
- Population density
- 532 / sq mi
- Land area
- 27.6 sq mi (71.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $218,785
- Per-capita income
- $133,063
- Median age
- 47.6
- Households
- 5,117
- Housing units
- 5,939
- Median home value
- $1,483,500
- Median gross rent
- $3,500+ / month
- Congressional district
- CT-4 (119th Congress)
- USDA hardiness zone
- 7a (0 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 06831 with another ZIP · ZIPs within 25 miles · distance from 06831
Map of ZIP code 06831
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 48 | 59 | 69 | 78 | 83 | 81 | 74 | 63 | 52 | 42 |
| Avg low °F | 22 | 24 | 31 | 40 | 50 | 59 | 65 | 64 | 57 | 46 | 36 | 28 |
| Precip in | 3.2 | 2.5 | 4.1 | 4.2 | 3.9 | 4.3 | 4.1 | 4.4 | 4.9 | 4.3 | 3.6 | 4.2 |
NOAA 1991–2020 climate normals from the nearest station: WESTCHESTER CO AP (2.6 mi) · NOAA NCEI
Places in ZIP 06831
- 7 schools
- 2 supermarkets
- 6 restaurants & cafés
- 3 parks
- 1 playgrounds
- 2 gyms & sports centres
- 1 post offices
- 5 places of worship
- 1 banks
- 2 gas stations
- 2 EV charging stations
- 3 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