Kalispell, Montana

3 ZIP codes · Mountain time

ZIP codes (largest first)

59901 · 63,16159903 (PO box)59904 (PO box)
Population28,504
StateMontana
CountyFlathead County
Area code406
Time zoneMountain
Land area12.91 sq mi

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.