ZIP code · Arlee · Montana · United States

ZIP code 59821 — Arlee

ZIP code 59821 serves Arlee, Montana.

Postal code
59821
Single source Value from one source, not cross-checked.
City
Arlee
County
Lake FIPS 30047
State
Montana
Country
United States
Coordinates
47.1860, -114.0760 — precision precise (locality)
View on OpenStreetMap
Population
2,822 (ZCTA, ACS 5-year)
Population density
9 / sq mi
Land area
319.6 sq mi (827.9 km²) (ZCTA, ACS 5-year)
Median household income
$68,370
Per-capita income
$32,125
Median age
39.5
Households
942
Housing units
1,100
Median home value
$379,700
Median gross rent
$962 / month
Congressional district
MT-1 (119th Congress)
USDA hardiness zone
5b (-15 to -10 °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 86°F), coldest Feb (avg low 22°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F374051596975868675594537
Avg low °F232228344147525144352823
Precip in0.91.10.91.82.32.61.01.21.51.31.10.9

NOAA 1991–2020 climate normals from the nearest station: SAINT IGNATIUS (8.9 mi) · NOAA NCEI

Places in ZIP 59821

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