Post Falls, Idaho

2 ZIP codes · Pacific time

ZIP codes (largest first)

83854 · 54,85183877 (PO box)
Population43,391
StateIdaho
CountyKootenai County
Time zonePacific
Land area19.12 sq mi

Area codes in this area

208986

These are the area codes that most often serve Post Falls (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

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