Frederick, Colorado

1 ZIP code · Mountain time

ZIP codes (largest first)

80530 · 6,242
Population16,651
StateColorado
CountyWeld County
Time zoneMountain
Land area15.21 sq mi

Area codes in this area

303720983

These are the area codes that most often serve Frederick (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.