ZIP code · Etna · New Hampshire · United States
ZIP code 03750 — Etna
ZIP code 03750 serves Etna, New Hampshire.
- Postal code
- 03750Single source Value from one source, not cross-checked.
- City
- Etna
- County
- Grafton FIPS 33009
- State
- New Hampshire
- Country
- United States
- Coordinates
- 43.7113, -72.2125 — precision precise (locality)
View on OpenStreetMap - Population
- 1,139 (ZCTA, ACS 5-year)
- Population density
- 72 / sq mi
- Land area
- 15.8 sq mi (40.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $218,750
- Per-capita income
- $79,038
- Median age
- 38
- Households
- 355
- Housing units
- 452
- Median home value
- $797,600
- Congressional district
- NH-2 (119th Congress)
- USDA hardiness zone
- 5a (-20 to -15 °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 03750 with another ZIP · ZIPs within 25 miles · distance from 03750
Nearby localities
Map of ZIP code 03750
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 34 | 44 | 58 | 71 | 79 | 83 | 82 | 74 | 60 | 47 | 36 |
| Avg low °F | 13 | 14 | 24 | 35 | 46 | 55 | 61 | 59 | 52 | 40 | 31 | 20 |
| Precip in | 2.7 | 2.4 | 3.0 | 3.2 | 3.3 | 3.7 | 4.5 | 3.5 | 3.3 | 4.0 | 3.0 | 3.4 |
NOAA 1991–2020 climate normals from the nearest station: HANOVER (3.7 mi) · NOAA NCEI
Places in ZIP 03750
- 1 schools
- 3 parks
- 1 gyms & sports centres
- 1 libraries
- 1 places of worship
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