Winnebago County, Illinois
Winnebago County: County in Illinois, United States
About
Winnebago County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 295,266 and a population density of 569 people per km². After 10 years in 2020 county had an estimated population of 281,295 inhabitants. Its county seat is Rockford. The county was created 189 years ago in 1836.
![Winnebago County locator map](https://cdn.mapsof.net/images/492/4916845/winnebago-county-locator-map-image_138227.png)
Quick Facts about Winnebago County
Population : | 281,295 (2020) |
Country : | United States of America |
State : | Illinois (United States) |
Different from : | Winnebago County, Winnebago County |
Twitter username : | winnebagoil |
Area : | 519 km2 |
Water as percent of area : | 1.1% |
Land as percent of area : | 98.9% |
Named for : | Ho-Chunk |
Altitude : | 797 feet / 243 meters |
Capital : | Rockford |
Establishment : | January 01, 1836 |
Time Zone : | America/Chicago |
Local time : | 2/17/2025 - 6:25:07 PM |
Density : | 542 Pop. per km² as of 2020 |
Population growth : | -4.97% (2010-2020) |
![RockfordCityHall image](https://cdn.mapsof.net/images/492/4916845/winnebago-county-image_2006.jpg)
![RockfordCityHall image](https://cdn.mapsof.net/images/492/4916845/winnebago-county-image_2006.jpg)
Geography
Winnebago County is located at 42°20'11"N 89°9'39"W (42.3362600, -89.1608500). It has 6 neighbors: Boone County, DeKalb County, Ogle County, Stephenson County, Green County and Rock County.
Winnebago County map
The largest city of Winnebago County is Rockford with a population of 144,835. Other cities include, Loves Park population 23,382, South Beloit population 7,540, Winnebago population 2,973 and Pecatonica population 1,926. See all Winnebago County cities & populated places.
Winnebago County Populated Places
Cities, towns, neighborhoods & other populated places in Winnebago County.
City Name | Population | Title |
---|---|---|
Rockford | 144,835 | The second most populous city in Illinois. |
Loves Park | 23,382 | City north of Rockford, Illinois |
Machesney Park | 22,678 | Village in the U. |
Roscoe | 10,406 | Town |
South Beloit | 7,540 | City in Winnebago County, Illinois, United States |
Rockton | 7,477 | Illinois village near the Wisconsin border |
Winnebago | 2,973 | City in Minnesota, United States |
Cherry Valley | 2,853 | Township in Winnebago County, Illinois |
Harlem | 2,114 | Township in Winnebago County, Illinois, United States |
Lake Summerset | 2,048 | Census designated place |
Pecatonica | 1,926 | City in Illinois, United States of America |
Durand | 1,387 | Village in the United States |
Shirland | 944 | Township in Winnebago County, Illinois |
Seward | 874 | Human settlement in Illinois, United States of America |
New Milford | 851 | Human settlement in Illinois, United States of America |
- Official Website
Official website of Winnebago County
Winnebago County has 6 neighbours.
- Boone County county in Illinois, United States
- DeKalb County county in Illinois, United States
- Ogle County county in Illinois, United States
- Stephenson County county in Illinois, United States
- Green County county in Wisconsin, United States
- Rock County county in Wisconsin, United States
- Rockford
Demographics
According to census records, the population of Winnebago County decreased by 4.97% in 10 years.
Year | Population | % Change | Method |
2010 | 295,266 | - | census |
2011 | 293,642 | -0.55% | estimation process |
2012 | 292,084 | -0.53% | estimation process |
2013 | 290,945 | -0.39% | estimation process |
2014 | 288,695 | -0.78% | estimation process |
2015 | 287,148 | -0.54% | estimation process |
2016 | 286,065 | -0.38% | estimation process |
2017 | 284,681 | -0.49% | estimation process |
2018 | 283,630 | -0.37% | estimation process |
2019 | 282,572 | -0.37% | estimation process |
2020 | 281,295 | -0.45% | estimation process |
Other places with the same name (3)
- Winnebago County , Wisconsin county in Wisconsin, United States with a population of 171,631 people.
- Winnebago County , Iowa county in Iowa, United States with a population of 10,277 people.
Illinois Other Counties (more counties)
County Name | Population | Title |
---|---|---|
Cook County | 5,108,284 | County in Illinois, United States |
Chicago | 2,677,643 | The third most populous city in the United States and the center of the Chicago metropolitan area. |
DuPage County | 917,481 | County in Illinois, United States |
Lake County | 693,593 | County in Oregon, United States |
Will County | 688,726 | County in Illinois, United States |
Kane County | 531,010 | County in southern Utah, United States |
McHenry County | 305,888 | County in Illinois, United States |
Madison County | 262,635 | County in Montana, United States |
Saint Clair County | 258,046 | The County of St. |
Champaign County | 209,192 | County in Illinois, United States |
Aurora | 196,383 | The second most populous city in Illinois. |
Sangamon County | 193,882 | County in Illinois, United States |
Peoria County | 177,652 | County in Illinois, United States of America |
McLean County | 171,256 | County in North Dakota, United States |
Naperville | 147,986 | The second most populous city in Illinois. |
Rockford | 144,835 | The second most populous city in Illinois. |