ZIP code · Fort Benton · Montana · United States

ZIP code 59442 — Fort Benton

ZIP code 59442 serves Fort Benton, Montana.

Postal code
59442
Single source Value from one source, not cross-checked.
City
Fort Benton
County
Chouteau FIPS 30015
State
Montana
Country
United States
Coordinates
47.9240, -110.6052 — precision precise (locality)
View on OpenStreetMap
Population
1,777 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
790.3 sq mi (2,046.8 km²) (ZCTA, ACS 5-year)
Median household income
$68,024
Per-capita income
$33,254
Median age
44.1
Households
715
Housing units
938
Median home value
$209,600
Median gross rent
$690 / month
Congressional district
MT-2 (119th Congress)
USDA hardiness zone
4a (-30 to -25 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
406
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.

Climate — monthly normals

Warmest month Jul (avg high 88°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F343849596977888776614636
Avg low °F71020303948535141301910
Precip in0.50.40.51.42.02.51.21.21.11.00.60.4

NOAA 1991–2020 climate normals from the nearest station: LOMA (4.8 mi) · NOAA NCEI

Places in ZIP 59442

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