Richland County, Illinois
Richland County: County in Illinois, United States
About
Richland County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 16,233 and a population density of 17 people per km². After 10 years in 2020 county had an estimated population of 15,507 inhabitants. Its county seat is Olney. The county was created 183 years ago in 1841.
![Richland County locator map](https://cdn.mapsof.net/images/425/4248062/richland-county-il-locator-map-image_190309.png)
Quick Facts about Richland County
Population : | 15,507 (2020) |
Country : | United States of America |
State : | Illinois (United States) |
Different from : | Richland County, Richland County, Richland County, Richland County, Richland County, Richland Parish |
Area : | 938 km2 |
Water as percent of area : | 0.5% |
Land as percent of area : | 99.5% |
Named for : | Richland County |
Capital : | Olney |
Establishment : | February 02, 1841 |
Time Zone : | America/Chicago |
Local time : | 2/17/2025 - 6:24:45 PM |
Density : | 17 Pop. per km² as of 2020 |
Population growth : | -4.68% (2010-2020) |
![Richland County Courthouse in Olney image](https://cdn.mapsof.net/images/425/4248062/richland-county-il-image_66965.jpg)
![Richland County Courthouse in Olney image](https://cdn.mapsof.net/images/425/4248062/richland-county-il-image_66965.jpg)
Geography
Richland County is located at 38°42'44"N 88°5'6"W (38.7123600, -88.0851000). It has 6 neighbors: Clay County, Crawford County, Jasper County, Lawrence County, Wabash County and Wayne County.
Richland County map
The largest city of Richland County is Olney with a population of 8,667. Other cities include and Parkersburg population 201. See all Richland County cities & populated places.
Richland County Populated Places
Cities, towns, neighborhoods & other populated places in Richland County.
City Name | Population | Title |
---|---|---|
Olney | 8,667 | City in Richland County, Illinois, United States of America |
Amity | 807 | Township in Livingston County, Illinois |
Noble | 719 | Village in Illinois |
Seminary | 483 | Township in Fayette County, Illinois |
Parkersburg | 201 | Human settlement in Illinois, United States of America |
Claremont | 168 | Village in Richland County, Illinois, United States |
Calhoun | 164 | Village in the United States |
Richland County has 6 neighbours.
- Clay County county in Illinois, United States
- Crawford County county in Illinois, United States
- Jasper County county in Illinois, United States
- Lawrence County county in Illinois, United States
- Wabash County county in Illinois, United States
- Wayne County county in Illinois, United States
Demographics
According to census records, the population of Richland County decreased by 4.68% in 10 years.
Year | Population | % Change | Method |
2010 | 16,233 | - | census |
2011 | 16,190 | -0.27% | estimation process |
2012 | 16,134 | -0.35% | estimation process |
2013 | 16,008 | -0.79% | estimation process |
2014 | 16,020 | 0.07% | estimation process |
2015 | 15,957 | -0.39% | estimation process |
2016 | 15,829 | -0.81% | estimation process |
2017 | 15,837 | 0.05% | estimation process |
2018 | 15,695 | -0.9% | estimation process |
2019 | 15,513 | -1.17% | estimation process |
2020 | 15,507 | -0.04% | estimation process |
Other places with the same name (6)
- Richland County , South Carolina county in South Carolina, United States with a population of 419,051 people.
- Richland County , Ohio county in Ohio, United States with a population of 120,891 people.
- Richland County , Wisconsin county in Wisconsin, United States with a population of 17,258 people.
- Richland County , North Dakota county in North Dakota, United States with a population of 16,156 people.
- Richland County , Montana county in Montana, United States with a population of 11,043 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. |