ZIP code · Heart Butte · Montana · United States

ZIP code 59448 — Heart Butte

ZIP code 59448 serves Heart Butte, Montana.

Postal code
59448
Single source Value from one source, not cross-checked.
City
Heart Butte
County
Pondera FIPS 30073
State
Montana
Country
United States
Coordinates
48.2777, -112.8456 — precision precise (locality)
View on OpenStreetMap
Population
647 (ZCTA, ACS 5-year)
Population density
8 / sq mi
Land area
77.2 sq mi (199.9 km²) (ZCTA, ACS 5-year)
Median household income
$29,318
Per-capita income
$16,004
Median age
28.6
Households
164
Housing units
199
Median home value
$47,500
Median gross rent
$457 / month
Congressional district
MT-1 (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 74°F), coldest Feb (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303137465664747463503629
Avg low °F131319273441464438292215
Precip in3.12.62.52.22.94.01.51.52.22.52.82.6

NOAA 1991–2020 climate normals from the nearest station: E GLACIER (20.9 mi) · NOAA NCEI

Places in ZIP 59448

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