ZIP code · Merrimack · New Hampshire · United States
ZIP code 03054 — Merrimack
ZIP code 03054 serves Merrimack, New Hampshire.
- Postal code
- 03054Single source Value from one source, not cross-checked.
- City
- Merrimack
- County
- Hillsborough FIPS 33011
- State
- New Hampshire
- Country
- United States
- Coordinates
- 42.8667, -71.5128 — precision precise (locality)
View on OpenStreetMap - Population
- 27,604 (ZCTA, ACS 5-year)
- Population density
- 847 / sq mi
- Land area
- 32.6 sq mi (84.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $128,897
- Per-capita income
- $56,342
- Median age
- 41.5
- Households
- 10,378
- Housing units
- 10,581
- Median home value
- $406,200
- Median gross rent
- $1,819 / 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
- 603Telephone 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 03054 with another ZIP · ZIPs within 25 miles · distance from 03054
Nearby localities
Map of ZIP code 03054
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 14°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 34 | 37 | 45 | 59 | 70 | 78 | 84 | 83 | 75 | 63 | 51 | 40 |
| Avg low °F | 14 | 15 | 23 | 34 | 46 | 56 | 61 | 59 | 51 | 39 | 30 | 21 |
| Precip in | 3.4 | 3.2 | 4.3 | 4.2 | 3.9 | 4.3 | 3.6 | 3.9 | 4.0 | 4.8 | 3.9 | 4.5 |
NOAA 1991–2020 climate normals from the nearest station: NASHUA 2 NNW (5.6 mi) · NOAA NCEI
Places in ZIP 03054
- 11 schools
- 1 colleges & universities
- 2 hospitals & clinics
- 11 doctors & dentists
- 2 pharmacies
- 3 supermarkets
- 54 restaurants & cafés
- 14 parks
- 9 playgrounds
- 8 gyms & sports centres
- 2 libraries
- 1 post offices
- 9 places of worship
- 7 banks
- 10 gas stations
- 1 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