Iroquois County, Illinois
Iroquois County: County in Illinois, United States
About
Iroquois County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 29,718 and a population density of 10 people per km². After 10 years in 2020 county had an estimated population of 26,711 inhabitants. Its county seat is Watseka. The county was created 192 years ago in 1832.
Quick Facts about Iroquois County
| Population : | 26,711 (2020) |
| Country : | United States of America |
| State : | Illinois (United States) |
| Area : | 2896 km2 |
| Water as percent of area : | 0.1% |
| Land as percent of area : | 99.9% |
| Named for : | Iroquois River |
| Altitude : | 653 feet / 199 meters |
| Capital : | Watseka |
| Establishment : | January 01, 1833 |
| Time Zone : | America/Chicago |
| Local time : | 17:20:03 (22nd February 2025) |
| Density : | 9 Pop. per km² as of 2020 |
| Population growth : | -11.26% (2010-2020) |
Geography
Iroquois County is located at 40°44'50"N 87°49'27"W (40.7472300, -87.8243000). It has 6 neighbors: Vermillion County, Ford County, Kankakee County, Benton County, Montgomery County and Newton County.
Iroquois County map
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The largest city of Iroquois County is Watseka with a population of 4,694. Other cities include, Gilman population 1,625, Sheldon population 935, Buckley population 528 and Thawville population 241. See all Iroquois County cities & populated places.
Iroquois County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Iroquois County.
| City Name | Population | Title |
|---|---|---|
| Watseka | 4,694 | City in and county seat of Iroquois County, Illinois, United States |
| Gilman | 1,625 | Human settlement in Iroquois County, Illinois, United States of America |
| Hallock | 1,532 | Township in Peoria County, Illinois |
| Clifton | 1,297 | Village in Chebanse Township, Iroquois County, Illinois, USA |
| Onarga | 1,241 | Village in Iroquois County, Illinois, United States of America |
| Milford | 1,155 | Village in Milford Township, Iroquois County, Illinois, United States of America |
| Sheldon | 935 | Human settlement in Iroquois County, Illinois, United States of America |
| Cissna Park | 771 | Village in Pigeon Grove Township, Iroquois County, Illinois, United States |
| Ashkum | 710 | Township in Iroquois County, Illinois |
| Crescent City | 547 | Village in Illinois, United States |
| Danforth | 542 | Township in Iroquois County, Illinois |
| Buckley | 528 | Human settlement in Iroquois County, Illinois, United States of America |
| Loda | 396 | Township in Iroquois County, Illinois |
| Martinton | 338 | Township in Iroquois County, Illinois |
| Fountain Creek | 327 | Township in Iroquois County, Illinois |
| Beaverville | 319 | Township in Iroquois County, Illinois |
- Official Website
Official website of Iroquois County
Iroquois County has 6 neighbours.
- Vermillion County county in Indiana, United States
- Ford County county in Illinois, United States
- Kankakee County county in Illinois, United States
- Benton County county in Indiana, United States
- Montgomery County county in Indiana, United States
- Newton County county in Indiana, United States
Demographics
According to census records, the population of Iroquois County decreased by 11.26% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 29,718 | - | census |
| 2011 | 29,500 | -0.74% | estimation process |
| 2012 | 29,267 | -0.8% | estimation process |
| 2013 | 28,940 | -1.13% | estimation process |
| 2014 | 28,719 | -0.77% | estimation process |
| 2015 | 28,522 | -0.69% | estimation process |
| 2016 | 28,163 | -1.27% | estimation process |
| 2017 | 27,777 | -1.39% | estimation process |
| 2018 | 27,484 | -1.07% | estimation process |
| 2019 | 27,114 | -1.36% | estimation process |
| 2020 | 26,711 | -1.51% | estimation process |
People born in Iroquois County (3)
People born in Iroquois County, including U.S. botanist, botanical collector and scientific illustrator Mary Agnes Chase, politician E. B. Dean, Edmund Hanson, .
List
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 |
| Winnebago County | 281,295 | 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. |
