Winnebago County, Illinois
20 ZIP codes · 513.05 sq mi of land · FIPS 17201
| Population | 283,292 |
|---|---|
| State | Illinois |
| FIPS code | 17201 |
| Time zone | Central |
| Land area | 513.05 sq mi |
| Center (lat, long) | 42.3374, -89.1612 |
Area codes in this area
These are the area codes that most often serve Winnebago County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Rockford · 147,521Loves Park · 23,502Machesney Park · 22,630Cherry ValleyDurandPecatonicaRocktonRoscoeSewardShirlandSouth BeloitWinnebago
ZIP codes in Winnebago County
61016 Cherry Valley61024 Durand61063 Pecatonica61072 Rockton61073 Roscoe61077 Seward61079 Shirland61080 South Beloit61088 Winnebago61101 Rockford61102 Rockford61103 Rockford61104 Rockford61107 Rockford61108 Rockford61109 Rockford61111 Loves Park61112 Rockford61114 Rockford61115 Machesney Park
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.