Hardin County, Illinois
Hardin County: county in Illinois, United States
About
Hardin County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 4,320 and a population density of 9 people per km². After 10 years in 2020 county had an estimated population of 3,808 inhabitants. Its county seat is Elizabethtown. The county was created 187 years ago in 1839.
County Snapshot
Hardin County at a glance
Hardin County currently has 5 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
5
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Illinois counties
102
Open related pagesLargest city
RosiclarePopulation 1,008
Top linked places
Quick Facts about Hardin County
| Population | 3,808 (2020) |
| Country | United States of America |
| State | Illinois (United States) |
| Different from | Hardin County, Hardin County, Hardin County, Hardin County, Hardin County |
| Area | 470 km2 |
| Water as percent of area | 2.2% |
| Land as percent of area | 97.8% |
| Latitude & Longitude | 37.5182,-88.2669 |
| Named for | John Hardin |
| Capital | Elizabethtown |
| Establishment | March 01, 1839 |
| Time Zone | America/Chicago |
| Local time | 03:50:51 (17th April 2026) |
| Density | 8 Pop. per km² as of 2020 |
| Population growth | -13.45% (2010-2020) |
Geography
Hardin County is located at 37°31'6"N 88°16'1"W (37.5182000, -88.2668500). It has 6 neighbors: Gallatin County, Pope County, Saline County, Crittenden County, Livingston County and Union County.
Hardin County map
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The largest city of Hardin County is Rosiclare with a population of 1,008. Other cities include, Fairview population 459, Rock Creek population 317, Cave-in-Rock population 278 and Elizabethtown population 272. See all Hardin County cities & populated places.
Hardin County Populated Places
Cities, towns, neighborhoods & other populated places in Hardin County.
| City Name | Population | Title |
|---|---|---|
| Rosiclare | 1,008 | City in Hardin County, Illinois, United States |
| Fairview | 459 | Village in Illinois, United States |
| Rock Creek | 317 | Unincorporated community in Illinois |
| Cave-in-Rock | 278 | Human settlement in Illinois, United States of America |
| Elizabethtown | 272 | Human settlement in Hardin County, Illinois, United States of America |
Official website of Hardin County
Official WebsiteDemographics
According to census records, the population of Hardin County decreased by 13.45% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 4,320 | - | census |
| 2011 | 4,294 | -0.61% | estimation process |
| 2012 | 4,281 | -0.3% | estimation process |
| 2013 | 4,177 | -2.49% | estimation process |
| 2014 | 4,149 | -0.67% | estimation process |
| 2015 | 4,067 | -2.02% | estimation process |
| 2016 | 3,991 | -1.9% | estimation process |
| 2017 | 3,922 | -1.76% | estimation process |
| 2018 | 3,893 | -0.74% | estimation process |
| 2019 | 3,821 | -1.88% | estimation process |
| 2020 | 3,808 | -0.34% | estimation process |
Other places with the same name (5)
- Hardin County, Kentucky county in Tennessee, United States with a population of 111,309 people.
- Hardin County, Texas county in Texas, United States with a population of 58,305 people.
- Hardin County, Ohio county in Ohio, United States of America with a population of 31,469 people.
- Hardin County, Tennessee county in Tennessee, United States with a population of 25,583 people.
- Hardin County, Iowa county in Iowa, United States with a population of 16,575 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. |