ZIP code · Harlowton · Montana · United States

ZIP code 59036 — Harlowton

ZIP code 59036 serves Harlowton, Montana.

Postal code
59036
Single source Value from one source, not cross-checked.
City
Harlowton
County
Wheatland FIPS 30107
State
Montana
Country
United States
Coordinates
46.4477, -109.8435 — precision precise (locality)
View on OpenStreetMap
Population
1,530 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
685.1 sq mi (1,774.4 km²) (ZCTA, ACS 5-year)
Median household income
$50,859
Per-capita income
$28,692
Median age
47.6
Households
635
Housing units
826
Median home value
$186,700
Median gross rent
$778 / 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
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 84°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F363848546474848373574535
Avg low °F131420283746504840302115
Precip in0.30.30.61.32.52.81.41.31.10.70.50.4

NOAA 1991–2020 climate normals from the nearest station: HARLOWTON (0.8 mi) · NOAA NCEI

Places in ZIP 59036

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