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ZIP Code 59631 – Basin, MT

Basin, Montana · Jefferson County · Mountain time

ZIP code59631
CityBasin
StateMontana
CountyJefferson County
Area code406
Population375
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area156.44 sq mi
Center (lat, long)46.2906, -112.3890

Map

Nearby ZIP codes

59728 Elliston · 15.2 mi59638 Jefferson City · 17.8 mi59722 Deer Lodge · 17.9 mi59701 Butte · 18.2 mi59601 Helena · 18.9 mi59634 Clancy · 20.1 mi59632 Boulder · 20.2 mi59707 Butte · 21 mi

About ZIP 59631

ZIP code 59631 is assigned to Basin, Montana. It lies in Jefferson County. Its Census area covers about 156.44 square miles of land. The closest neighboring ZIP is 59728 (Elliston), about 15.2 miles away.

Every address in 59631 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