ZIP code · Bath · New Hampshire · United States

ZIP code 03740 — Bath

ZIP code 03740 serves Bath, New Hampshire.

Postal code
03740
Single source Value from one source, not cross-checked.
City
Bath
County
Grafton FIPS 33009
State
New Hampshire
Country
United States
Coordinates
44.1808, -71.9828 — precision precise (locality)
View on OpenStreetMap
Population
1,049 (ZCTA, ACS 5-year)
Population density
28 / sq mi
Land area
37.2 sq mi (96.3 km²) (ZCTA, ACS 5-year)
Median household income
$70,298
Per-capita income
$36,480
Median age
50.9
Households
429
Housing units
495
Median home value
$219,200
Median gross rent
$1,289 / month
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.

Nearby localities

Climate — monthly normals

Warmest month Jul (avg high 77°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F262938526473777669564332
Avg low °F7918304251565446352615
Precip in2.42.12.83.33.53.84.44.43.54.53.53.1

NOAA 1991–2020 climate normals from the nearest station: BENTON 5 SW (10.3 mi) · NOAA NCEI

Places in ZIP 03740

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