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 213 years ago in 1811.
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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 : | 2/21/2025 - 4:36:33 PM |
Density : | 14 Pop. per km² as of 2020 |
Population growth : | -1.81% (2010-2020) |
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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
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. |