Johnson County, Illinois
Johnson County: County in Illinois, United States
About
Johnson County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 12,582 and a population density of 14 people per km². After 10 years in 2020 county had an estimated population of 12,358 inhabitants. Its county seat is Vienna. The county was created 212 years ago in 1811.
Quick Facts about Johnson County
| Population : | 12,358 (2020) |
| Country : | United States of America |
| State : | Illinois (United States) |
| Different from : | Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County, Johnson County |
| Area : | 904 km2 |
| Water as percent of area : | 1.4% |
| Land as percent of area : | 98.6% |
| Named for : | Richard Mentor Johnson |
| Capital : | Vienna |
| Establishment : | January 01, 1812 |
| Time Zone : | America/Chicago |
| Local time : | 19:23:55 (30th December 2024) |
| Density : | 14 Pop. per km² as of 2020 |
| Population growth : | -1.81% (2010-2020) |
Geography
Johnson County is located at 37°27'35"N 88°52'51"W (37.4596300, -88.8808900). It has 6 neighbors: Massac County, Pope County, Pulaski County, Saline County, Union County and Williamson County.
Johnson County map
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The largest city of Johnson County is Vienna with a population of 1,427. Other cities include, Pleasant Grove population 1,275, Goreville population 1,046, Buncombe population 201 and Simpson population 60. See all Johnson County cities & populated places.
Johnson County Populated Places
Cities, towns, neighborhoods & other populated places in Johnson County.
| City Name | Population | Title |
|---|---|---|
| Vienna | 1,427 | City in Johnson County, Illinois |
| Pleasant Grove | 1,275 | Unincorporated community in Illinois |
| Goreville | 1,046 | Human settlement in Illinois, United States of America |
| Cypress | 236 | Village in Johnson County, Illinois, United States |
| New Burnside | 211 | Village in Johnson County, Illinois, United States |
| Buncombe | 201 | Human settlement in Illinois, United States of America |
| Parker | 168 | Township in Clark County, Illinois |
| Belknap | 107 | Village in Johnson County, Illinois, United States |
| Simpson | 60 | Human settlement in Illinois, United States of America |
Johnson County has 6 neighbours.
- Massac County county in Illinois, United States
- Pope County county in Illinois, United States
- Pulaski County county in Illinois, United States
- Saline County county in Illinois, United States
- Union County county in Illinois, United States
- Williamson County county in Illinois, United States
Demographics
According to census records, the population of Johnson County decreased by 1.81% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 12,582 | - | census |
| 2011 | 12,855 | 2.12% | estimation process |
| 2012 | 12,856 | 0.01% | estimation process |
| 2013 | 12,867 | 0.09% | estimation process |
| 2014 | 12,887 | 0.16% | estimation process |
| 2015 | 12,777 | -0.86% | estimation process |
| 2016 | 12,454 | -2.59% | estimation process |
| 2017 | 12,399 | -0.44% | estimation process |
| 2018 | 12,423 | 0.19% | estimation process |
| 2019 | 12,417 | -0.05% | estimation process |
| 2020 | 12,358 | -0.48% | estimation process |
People born in Johnson County (1)
American politician (1865-1922) Norman Adolphus Mozley was born in Johnson County
Other places with the same name (12)
- Johnson County , Kansas county in Wyoming, United States with a population of 607,220 people.
- Johnson County , Texas county in Texas, United States with a population of 179,575 people.
- Johnson County , Indiana county in Indiana, United States with a population of 160,607 people.
- Johnson County , Iowa county in Iowa, United States with a population of 153,740 people.
- Johnson County , Missouri county in Missouri, United States with a population of 54,219 people.
- Johnson County , Arkansas county in Arkansas, United States with a population of 26,513 people.
- Johnson County , Kentucky county in Kentucky, United States with a population of 22,002 people.
- Johnson County , Tennessee county in Tennessee, United States with a population of 17,849 people.
- Johnson County , Georgia county in Georgia, United States with a population of 9,667 people.
- Johnson County , Wyoming county in Wyoming, United States with a population of 8,588 people.
- Johnson County , Nebraska county in Nebraska, United States with a population of 5,057 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. |
