| Capital: | Rockford |
|---|---|
| Origen y Formación del condado: | Jo Daviess |
| Población: | 295,266 habitantes |
| Área: | 514 sq mi |
| Localización del condado dentro de Illinois: |
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Localidades en Winnebago, Illinois
- Burritt Township Winnebago County
- Cherry Valley
- Cherry Valley Township Winnebago County
- Durand
- Durand Township Winnebago County
- Harlem Township Winnebago County
- Harrison
- Harrison Township Winnebago County
- Lake Summerset
- Laona Township Winnebago County
- Loves Park
- Machesney Park
- New Milford
- Owen Township Winnebago County
- Pecatonica
- Pecatonica Township Winnebago County
- Rockford
- Rockford Township Winnebago County
- Rockton
- Rocktontownship Winnebago County
- Roscoe
- Roscoe Township Winnebago County
- Seward
- Seward Township
- Seward Township Winnebago County
- Shirland
- Shirland Township Winnebago County
- South Beloit
- Winnebago
- Winnebago Township Winnebago County