ZIP code · Roundup · Montana · United States

ZIP code 59072 — Roundup

ZIP code 59072 serves Roundup, Montana.

Postal code
59072
Single source Value from one source, not cross-checked.
City
Roundup
County
Musselshell FIPS 30065
State
Montana
Country
United States
Coordinates
46.4225, -108.5438 — precision precise (locality)
View on OpenStreetMap
Population
4,590 (ZCTA, ACS 5-year)
Population density
4 / sq mi
Land area
1,291.3 sq mi (3,344.5 km²) (ZCTA, ACS 5-year)
Median household income
$59,785
Per-capita income
$35,117
Median age
51.2
Households
1,911
Housing units
2,344
Median home value
$222,400
Median gross rent
$877 / 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 89°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F374151606978898877614737
Avg low °F131522303948545142322214
Precip in0.40.40.71.72.52.91.71.21.21.20.50.4

NOAA 1991–2020 climate normals from the nearest station: ROUNDUP (1.2 mi) · NOAA NCEI

Places in ZIP 59072

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