Washington County , Illinois

Washington County: County in Illinois, United States

About

Washington County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 14,716 and a population density of 10 people per km². After 10 years in 2020 county had an estimated population of 13,764 inhabitants. Its county seat is Nashville. The county was created 204 years ago in 1817.

Washington County Quick Facts

Population : 13,764 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington Parish, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County
Area : 1461 km2
Water as percent of area : 0.2%
Land as percent of area : 99.8%
Named for : George Washington
Capital : Nashville
Establishment : January 01, 1818
Time Zone : America/Chicago
Local time : 08:39:38 (21st May 2022)
Density : 9 Pop. per km² as of 2020
Population growth : -6.92% (2010-2020)
Washington County locator map
Location of Washington County on Illinois map.
Map of Illinois highlighting Washington County locator map image
Map of Illinois highlighting Washington County
Map of Illinois highlighting Washington County locator map image

Geography

Washington County is located at 38°21'8"N 89°24'38"W (38.3521700, -89.4104500). It has 6 neighbors: Clinton County, Jefferson County, Marion County, Perry County, Randolph County and Saint Clair County.

Washington County map

The largest city of Washington County is Nashville with a population of 2,984. Other cities include, Okawville population 1,349, Lively Grove population 654, Ashley population 484 and Addieville population 236. See all Washington County cities & populated places.

Washington County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Washington County.

City Name Population Title
Posen 5,794 Village in United States of America
Nashville 2,984 City in Illinois, United States
Okawville 1,349 Human settlement in United States of America
Lively Grove 654 Unincorporated community in Illinois
Irvington 609 Township in Washington County, Illinois
Beaucoup 528 Township in Washington County, Illinois
Plum Hill 507 Township in Washington County, Illinois
Ashley 484 City in Illinois
Johannisburg 478 Township in Washington County, Illinois
Hoyleton 456 Township in Washington County, Illinois
Covington 389 Township in Washington County, Illinois
Richview 236 Township in Washington County, Illinois
Addieville 236 Human settlement in United States of America
Radom 209 Human settlement in Illinois, United States of America
New Minden 204 Human settlement in Illinois, United States of America
Oakdale 201 City in Washington County, Minnesota

Washington County has 6 neighbours.

  • Clinton County county in Illinois, United States
  • Jefferson County county in Illinois, United States
  • Marion County county in Illinois, United States
  • Perry County county in Illinois, United States
  • Randolph County county in Illinois, United States
  • Saint Clair County The County of St. Clair is the oldest county in the U. S. Illinois state; the Mississippi River, bordering the U, forms its western boundary. S. Missouri State. In southern Illinois, it is part of the Metro East. It had a population of 270,056 according to the 2010 United States Census, making it the eighth-most populous county in Illinois and the most populous in the state's southern part. Its seat in the county is Belleville.

Demographics

According to census records, the population of Washington County decreased by 6.92% in 10 years.

Year Population % Change Method
2010 14,716 - census
2011 14,576 -0.96% estimation process
2012 14,599 0.16% estimation process
2013 14,414 -1.28% estimation process
2014 14,392 -0.15% estimation process
2015 14,262 -0.91% estimation process
2016 14,179 -0.59% estimation process
2017 13,963 -1.55% estimation process
2018 13,999 0.26% estimation process
2019 13,887 -0.81% estimation process
2020 13,764 -0.89% estimation process

Comitatul Washington, Comte de Washington, Comté de Washington, Condado de Washington, Condado han Washington, Contea di Washington, Hrabstwo Washington, Okrug Vashington, Quan Washington, Quận Washington, Vashington, Vasington srjan, Washington, Washington Comitatus, Washington Kun, Washington Kūn, Washington konderria, Washington megye, Washingtoni maakond, hua sheng dun xian, mqatʿt washnghtwn, raasintana ka'unti, shhrstan washyngtn aylynwy, washinton jun, Вашингтон, Округ Вашингтон, Վաշինգտոն շրջան, شهرستان واشینگتن، ایلینوی, مقاطعة واشنغطون, واشنگٹن کاؤنٹی، الینوائے, واشنگٹن کاؤنٹی، الینوۓ, ৱাশিংটন কাউন্টি, ワシントン郡, 華盛頓縣

People born in Washington County (2)

People born in Washington County, including judge: justice on the Illinois Supreme Court Lloyd A. Karmeier, Illinois politician Charles Meier, .

List

Other places with the same name (30)

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