Freeport, Illinois

1 ZIP code · Central time

ZIP codes (largest first)

61032 · 29,020
Population23,505
StateIllinois
CountyStephenson County
Time zoneCentral
Land area11.87 sq mi

Area codes in this area

779815

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