Hardin County, Illinois

Hardin County: County in Illinois, United States


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 184 years ago in 1839.

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

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%
Named for : John Hardin
Capital : Elizabethtown
Establishment : March 03, 1839
Time Zone : America/Chicago
Local time : 03:44:09 (7th December 2023)
Density : 8 Pop. per km² as of 2020
Population growth : -13.45% (2010-2020)
Weather : 32℉ Mostly Clear 7-days weather
Elizabethtown  Illinois image
Elizabethtown Illinois
Elizabethtown  Illinois image


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

The largest city of Hardin County is Rosiclare with a population of 1,008. Other cities include, 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


Hardin County forecast: Mostly clear, with a low around 32. South southwest wind 6 to 10 mph. more

Hardin County has 6 neighbours.


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

Comitatul Hardin, Comte de Hardin, Comté de Hardin, Condado de Hardin, Condado han Hardin, Contea di Hardin, Gardin, Hardin, Hardin Comitatus, Hardin Kun, Hardin Kūn, Hardin konderria, Hardin megye, Hardin srjan, Hrabstwo Hardin, Khardin, Okrug Khardin, Quan Hardin, Quận Hardin, ha ding xian, hadin jun, haradina ka'unti, mqatʿt hardyn, shhrstan hardyn aylynwy, Гардін, Округ Хардин, Хардин, Հարդին շրջան, شهرستان هاردین، ایلینوی, مقاطعة هاردين, ہارڈن کاؤنٹی، الینوائے, ہارڈن کاؤنٹی، الینوۓ, হারডিন কাউন্টি, ハーディン郡, 哈丁縣

Other places with the same name (6)

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.