ZIP code · Forest Grove · Montana · United States

ZIP code 59441 — Forest Grove

ZIP code 59441 serves Forest Grove, Montana.

Postal code
59441
Single source Value from one source, not cross-checked.
City
Forest Grove
County
Fergus FIPS 30027
State
Montana
Country
United States
Coordinates
46.9914, -109.0802 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
155 (ZCTA, ACS 5-year)
Population density
1 / sq mi
Land area
175.8 sq mi (455.2 km²) (ZCTA, ACS 5-year)
Per-capita income
$32,622
Median age
38.5
Households
44
Housing units
101
Median home value
$228,800
Congressional district
MT-2 (119th Congress)
USDA hardiness zone
4b (-25 to -20 °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 (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.

Climate — monthly normals

Warmest month Aug (avg high 78°F), coldest Jan (avg low 15°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F333341495967777867533934
Avg low °F151522293846545344342417
Precip in0.80.91.22.13.83.51.91.81.71.51.00.8

NOAA 1991–2020 climate normals from the nearest station: LEWISTOWN 11ESE (6.8 mi) · NOAA NCEI

Places in ZIP 59441

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