ZIP code · Cardwell · Montana · United States

ZIP code 59721 — Cardwell

ZIP code 59721 serves Cardwell, Montana.

Postal code
59721
Single source Value from one source, not cross-checked.
City
Cardwell
County
Jefferson FIPS 30043
State
Montana
Country
United States
Coordinates
45.8941, -111.7809 — precision precise (locality)
View on OpenStreetMap
Population
519 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
209.5 sq mi (542.7 km²) (ZCTA, ACS 5-year)
Median household income
$86,932
Per-capita income
$50,180
Median age
48.4
Households
203
Housing units
266
Median home value
$615,700
Median gross rent
$896 / month
Congressional districts
MT-2 (also MT-1) (119th Congress)
USDA hardiness zone
5a (-20 to -15 °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 Jul (avg high 85°F), coldest Dec (avg low 15°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F333748566674858473584233
Avg low °F161826334249545143332315
Precip in0.40.30.71.52.22.41.41.01.10.90.60.7

NOAA 1991–2020 climate normals from the nearest station: TRIDENT (15.1 mi) · NOAA NCEI

Places in ZIP 59721

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