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ZIP Code 59405 – Great Falls, MT

Great Falls, Montana · Cascade County · Mountain time

ZIP code59405
CityGreat Falls
StateMontana
CountyCascade CountyChouteau County
Area code406
Population33,350
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area479.39 sq mi
Center (lat, long)47.2890, -111.3005

Map

Nearby ZIP codes

59472 Sand Coulee · 5.6 mi59480 Stockett · 11.8 mi59402 Malmstrom Afb · 14.6 mi59403 Great Falls · 14.6 mi59401 Great Falls · 15.4 mi59485 Ulm · 16 mi59414 Black Eagle · 16.6 mi59412 Belt · 20.5 mi

About ZIP 59405

ZIP code 59405 is assigned to Great Falls, Montana. It crosses 2 counties; most of its land is in Cascade County. Its Census area covers about 479.39 square miles of land. The closest neighboring ZIP is 59472 (Sand Coulee), about 5.6 miles away.

Every address in 59405 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources