Johnson County , Illinois

Johnson County: County in Illinois, United States

Johnson County locator map
Location of Johnson County on Illinois map.

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 209 years ago in 1811.

Johnson County Courthouse in Vienna image
Johnson County Courthouse in Vienna
Johnson County Courthouse in Vienna image

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.

Weather

Johnson County forecast: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. South wind 5 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. more

Johnson County Quick Facts

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 : 10:17:40 (24th October 2021)
Density : 14 Pop. per km² as of 2020
Population growth : -1.81% (2010-2020)
Weather : 78℉ Chance Showers And Thunderstorms 7-days weather

Johnson County has 6 neighbours.

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

Comitatul Johnson, Comte de Johnson, Comté de Johnson, Condado de Johnson, Condado han Johnson, Contea di Johnson, Dzhonson, Dzhonsun, Hrabstwo Johnson, Johnson, Johnson Comitatus, Johnson Kun, Johnson Kūn, Johnson konderria, Johnson megye, Jonson srjan, Okrug DZonson, Quan Johnson, Quận Johnson, jonson jun, jonsona ka'unti, mqatʿt jwnswn, shhrstan janswn aylynwy, yue han xun xian, Джонсон, Джонсън, Округ Џонсон, Ջոնսոն շրջան, جانسن کاؤنٹی، الینوائے, جانسن کاؤنٹی، الینوۓ, شهرستان جانسون، ایلینوی, مقاطعة جونسون, জোন্সোন কাউন্টি, ジョンソン郡, 約翰遜縣

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 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

Illinois Other Counties (more counties)

County Name Population Title
Cook County 5,108,284 County in Illinois, United States
Chicago 2,677,643 City and county seat of Cook County, Illinois, United States
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
Markham 328,966 City in Cook County, Illinois, 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 City in Kane County, Illinois, United States
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