ZIP code · New Castle · New Hampshire · United States
ZIP code 03854 — New Castle
ZIP code 03854 serves New Castle, New Hampshire.
- Postal code
- 03854Single source Value from one source, not cross-checked.
- City
- New Castle
- County
- Rockingham FIPS 33015
- State
- New Hampshire
- Country
- United States
- Coordinates
- 43.0681, -70.7199 — precision precise (locality)
View on OpenStreetMap - Population
- 948 (ZCTA, ACS 5-year)
- Population density
- 1,175 / sq mi
- Land area
- 0.8 sq mi (2.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $193,558
- Per-capita income
- $157,637
- Median age
- 56.8
- Households
- 439
- Housing units
- 517
- Median home value
- $1,612,700
- Median gross rent
- $3,453 / month
- Congressional district
- NH-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)
- 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 03854 with another ZIP · ZIPs within 25 miles · distance from 03854
Nearby localities
Map of ZIP code 03854
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 36 | 43 | 56 | 66 | 75 | 81 | 79 | 72 | 60 | 48 | 38 |
| Avg low °F | 16 | 18 | 25 | 35 | 45 | 54 | 60 | 59 | 52 | 41 | 31 | 22 |
| Precip in | 3.6 | 3.6 | 4.8 | 4.6 | 4.0 | 4.6 | 3.9 | 3.7 | 4.1 | 5.0 | 4.1 | 4.9 |
NOAA 1991–2020 climate normals from the nearest station: GREENLAND (6.3 mi) · NOAA NCEI
Places in ZIP 03854
- 1 schools
- 1 colleges & universities
- 2 restaurants & cafés
- 2 parks
- 2 playgrounds
- 1 libraries
- 1 post offices
- 1 places of worship
- 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