Henry County, Illinois
Henry County: County in Illinois, United States
About
Henry County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 50,486 and a population density of 24 people per km². After 10 years in 2020 county had an estimated population of 48,411 inhabitants. Its county seat is Cambridge. The county was created 200 years ago in 1825.
Quick Facts about Henry County
| Population : | 48,411 (2020) |
| Country : | United States of America |
| State : | Illinois (United States) |
| Different from : | Henry County, Henry County, Henry County, Henry County, Henry County, Henry County, Henry County, Henry County, Henry County |
| Area : | 2138 km2 |
| Water as percent of area : | 0.3% |
| Land as percent of area : | 99.7% |
| Named for : | Patrick Henry |
| Capital : | Cambridge |
| Establishment : | January 01, 1825 |
| Time Zone : | America/Chicago |
| Local time : | 17:11:45 (22nd February 2025) |
| Density : | 23 Pop. per km² as of 2020 |
| Population growth : | -4.29% (2010-2020) |
Geography
Henry County is located at 41°21'11"N 90°7'53"W (41.3531300, -90.1314200). It has 6 neighbors: Bureau County, Knox County, Mercer County, Rock Island County, Stark County and Whiteside County.
Henry County map
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The largest city of Henry County is Kewanee with a population of 12,174. Other cities include, Colona population 5,049, Green Rock population 2,970, Galva population 2,449 and Woodhull population 771. See all Henry County cities & populated places.
Henry County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Henry County.
| City Name | Population | Title |
|---|---|---|
| Kewanee | 12,174 | City in Henry County, Illinois, United States |
| Geneseo | 6,505 | Township in Henry County, Illinois |
| Colona | 5,049 | City in Henry County, Illinois, United States |
| Green Rock | 2,970 | City in Illinois, United States of America |
| Galva | 2,449 | City in Illinois, USA |
| Dayton | 2,258 | Census-designated place in Illinois, USA |
| Cambridge | 2,051 | Village in Henry County, Illinois, United States |
| Orion | 1,776 | Village in Henry County, Illinois, United States |
| Annawan | 1,056 | Township in Henry County, Illinois |
| Atkinson | 955 | Town in Illinois, United States |
| Woodhull | 771 | Human settlement in Illinois, United States of America |
| Alpha | 626 | City in Illinois, United States of America |
| Andover | 565 | Village in Illinois, USA |
| Osco | 437 | Township in Henry County, Illinois |
| Hooppole | 189 | Human settlement in Illinois, United States of America |
| Cleveland | 178 | Village in Henry County, Illinois, United States |
- Official Website
Official website of Henry County
Henry County has 6 neighbours.
- Bureau County county in Illinois, United States
- Knox County county in Illinois, United States
- Mercer County county in Illinois, United States
- Rock Island County county in Illinois, United States
- Stark County county in Illinois, United States
- Whiteside County county in Illinois, United States
Demographics
According to census records, the population of Henry County decreased by 4.29% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 50,486 | - | census |
| 2011 | 50,283 | -0.4% | estimation process |
| 2012 | 50,249 | -0.07% | estimation process |
| 2013 | 49,917 | -0.67% | estimation process |
| 2014 | 49,824 | -0.19% | estimation process |
| 2015 | 49,638 | -0.37% | estimation process |
| 2016 | 49,498 | -0.28% | estimation process |
| 2017 | 49,219 | -0.57% | estimation process |
| 2018 | 49,069 | -0.31% | estimation process |
| 2019 | 48,913 | -0.32% | estimation process |
| 2020 | 48,411 | -1.04% | estimation process |
People born in Henry County (3)
People born in Henry County, including journalist Jessie F. Culton, suffragist Mabel Fontron Rewman Frary, photographer Oliver B. Buell, .
List
Other places with the same name (10)
- Henry County , Georgia county in Indiana, United States with a population of 239,139 people.
- Henry County , Virginia county in Virginia, United States with a population of 50,309 people.
- Henry County , Indiana county in Indiana, United States with a population of 48,033 people.
- Henry County , Tennessee county in Tennessee, United States with a population of 32,056 people.
- Henry County , Ohio county in Ohio, United States with a population of 26,904 people.
- Henry County , Missouri county in Missouri, United States with a population of 22,076 people.
- Henry County , Iowa county in Iowa, United States with a population of 19,697 people.
- Henry County , Alabama county in Alabama, United States with a population of 17,223 people.
- Henry County , Kentucky county in Kentucky, United States with a population of 16,067 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 |
| 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. |
