ZIP code · East Andover · New Hampshire · United States
ZIP code 03231 — East Andover
ZIP code 03231 serves East Andover, New Hampshire.
- Postal code
- 03231Single source Value from one source, not cross-checked.
- City
- East Andover
- County
- Merrimack FIPS 33013
- State
- New Hampshire
- Country
- United States
- Coordinates
- 43.4595, -71.7476 — precision precise (locality)
View on OpenStreetMap - Population
- 80 (ZCTA, ACS 5-year)
- Population density
- 280 / sq mi
- Land area
- 0.3 sq mi (0.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $141,875
- Per-capita income
- $54,323
- Median age
- 59.5
- Households
- 34
- Housing units
- 47
- Congressional district
- NH-2 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °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)
- Area code
- 603 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 03231 with another ZIP · ZIPs within 25 miles · distance from 03231
Nearby localities
Map of ZIP code 03231
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 9°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 33 | 42 | 56 | 68 | 76 | 82 | 80 | 72 | 59 | 46 | 35 |
| Avg low °F | 9 | 10 | 20 | 31 | 43 | 52 | 58 | 56 | 48 | 37 | 26 | 17 |
| Precip in | 3.1 | 2.8 | 3.3 | 3.5 | 3.6 | 4.3 | 4.2 | 4.1 | 3.7 | 4.9 | 3.9 | 4.0 |
NOAA 1991–2020 climate normals from the nearest station: FRANKLIN FALLS DAM (4.8 mi) · NOAA NCEI
Places in ZIP 03231
- 1 parks
- 1 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