ZIP code · Buffalo · Montana · United States

ZIP code 59418 — Buffalo

ZIP code 59418 serves Buffalo, Montana.

Postal code
59418
Single source Value from one source, not cross-checked.
City
Buffalo
County
Fergus FIPS 30027
State
Montana
Country
United States
Coordinates
46.8211, -109.8285 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
105 (ZCTA, ACS 5-year)
Population density
1 / sq mi
Land area
128.2 sq mi (332 km²) (ZCTA, ACS 5-year)
Median household income
$50,000
Per-capita income
$46,443
Median age
28.1
Households
34
Housing units
54
Median home value
$562,500
Median gross rent
$933 / month
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 80°F), coldest Jan (avg low 12°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F343442516068798069544233
Avg low °F121320273644504940302112
Precip in0.40.50.61.83.33.01.71.51.40.90.50.4

NOAA 1991–2020 climate normals from the nearest station: JUDITH GAP (10.6 mi) · NOAA NCEI

Places in ZIP 59418

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