ZIP code · Marlow · New Hampshire · United States
ZIP code 03456 — Marlow
ZIP code 03456 serves Marlow, New Hampshire.
- Postal code
- 03456Single source Value from one source, not cross-checked.
- City
- Marlow
- County
- Cheshire FIPS 33005
- State
- New Hampshire
- Country
- United States
- Coordinates
- 43.1326, -72.2109 — precision precise (locality)
View on OpenStreetMap - Population
- 848 (ZCTA, ACS 5-year)
- Population density
- 33 / sq mi
- Land area
- 26 sq mi (67.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $104,605
- Per-capita income
- $42,374
- Median age
- 50.2
- Households
- 334
- Housing units
- 412
- Median home value
- $283,100
- Median gross rent
- $1,144 / month
- Congressional district
- NH-2 (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 03456 with another ZIP · ZIPs within 25 miles · distance from 03456
Nearby localities
Map of ZIP code 03456
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 13°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 33 | 42 | 56 | 67 | 75 | 81 | 79 | 72 | 60 | 47 | 36 |
| Avg low °F | 13 | 14 | 21 | 33 | 44 | 53 | 58 | 56 | 49 | 38 | 28 | 19 |
| Precip in | 3.2 | 3.0 | 3.6 | 3.8 | 3.4 | 5.1 | 4.8 | 4.2 | 4.0 | 4.6 | 3.6 | 3.8 |
NOAA 1991–2020 climate normals from the nearest station: WALPOLE 2S NEPP (13.1 mi) · NOAA NCEI
Places in ZIP 03456
- 1 schools
- 1 playgrounds
- 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