Fort Collins, Colorado

9 ZIP codes · Mountain time

ZIP codes (largest first)

80525 · 54,21180526 · 44,32680524 · 40,03080521 · 38,77680528 · 24,96080522 (PO box)80523 (PO box)80527 (PO box)80553 (PO box)
Population170,229
StateColorado
CountyLarimer County
Time zoneMountain
Land area57.24 sq mi

Area codes in this area

970

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

Find the ZIP+4 for an address in Fort Collins

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