| County Name | Winnebago County |
| FIPS Code | 17201 |
| Population | 295266 |
| Unemployment Rate | 7.2% |
| Time Zone: | Central Daylight Time |
List of All Zipcodes in Winnebago County, Illinois | |||||||
|---|---|---|---|---|---|---|---|
| ZIP Code | ZIP Code Name | Population | ZIP Type | ||||
| Caledonia | 2945 | Non-Unique | ||||
| Cherry Valley | 4837 | Non-Unique | ||||
| Davis | 3550 | Non-Unique | ||||
| Davis Junction | 3108 | Non-Unique | ||||
| Durand | 2620 | Non-Unique | ||||
| Leaf River | 1711 | Non-Unique | ||||
| Monroe Center | 1148 | Non-Unique | ||||
| Pecatonica | 4132 | Non-Unique | ||||
| Rockton | 11797 | Non-Unique | ||||
| Roscoe | 20052 | Non-Unique | ||||
| South Beloit | 10599 | Non-Unique | ||||
| Stillman Valley | 3175 | Non-Unique | ||||
| Winnebago | 6020 | Non-Unique | ||||
| Rockford | 21593 | Non-Unique | ||||
| Rockford | 20538 | Non-Unique | ||||
| Rockford | 24578 | Non-Unique | ||||
| Rockford | 19269 | Non-Unique | ||||
| Rockford | 30439 | Non-Unique | ||||
| Rockford | 28550 | Non-Unique | ||||
| Rockford | 28333 | Non-Unique | ||||
| Loves Park | 23492 | Non-Unique | ||||
| Rockford | 86 | Non-Unique | ||||
| Rockford | 15776 | Non-Unique | ||||
| Machesney Park | 23180 | Non-Unique | ||||
| Seward | 73 | PO Box | ||||
| Shirland | 188 | PO Box | ||||
| Rockford | N/A | PO Box | ||||
| Rockford | N/A | PO Box | ||||
| Rockford | N/A | PO Box | ||||
| Rockford | N/A | PO Box | ||||
| Rockford | N/A | PO Box | ||||
| Loves Park | N/A | PO Box | ||||
| Loves Park | N/A | PO Box | ||||
| Loves Park | N/A | PO Box | ||||
| List of Counties that Border Winnebago County, Illinois |
|---|
| Boone, IL |
| DeKalb, IL |
| Green, WI |
| Ogle, IL |
| Rock, WI |
| Stephenson, IL |
| Winnebago, IL |
| List of Cities/Towns in Winnebago County, Illinois |
|---|
| Cherry Valley, IL |
| Durand, IL |
| Lake Summerset, IL |
| Loves Park, IL |
| Machesney Park, IL |
| New Millford, IL |
| Pecatonica, IL |
| Rockford, IL |
| Rockton, IL |
| Roscoe, IL |
| South Beloit, IL |
| Winnebago, IL |