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ZIP Code 59401 – Great Falls, MT

Great Falls, Montana · Cascade County · Mountain time

ZIP code59401
CityGreat Falls
StateMontana
CountyCascade County
Area code406
Population13,255
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area2.96 sq mi
Center (lat, long)47.5112, -111.2772

Map

Nearby ZIP codes

59402 Malmstrom Afb · 1.3 mi59403 Great Falls · 1.3 mi59414 Black Eagle · 1.4 mi59406 Great Falls · 7.7 mi59404 Great Falls · 8.7 mi59472 Sand Coulee · 12.3 mi59485 Ulm · 14.6 mi59440 Floweree · 15.2 mi

About ZIP 59401

ZIP code 59401 is assigned to Great Falls, Montana. It lies in Cascade County. Its Census area covers about 2.96 square miles of land. The closest neighboring ZIP is 59402 (Malmstrom Afb), about 1.3 miles away.

Every address in 59401 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