Washington, Illinois

Washington
Denhart Bank Building at 101 Washington Sq.
Motto(s): 
"Your Pathway To Discovery; Enjoyment And Knowledge"
Location of Washington in Tazewell County, Illinois.
Location of Illinois in the United States
Coordinates: 40°42′18″N 89°26′03″W / 40.70500°N 89.43417°W / 40.70500; -89.43417
CountryUnited States
StateIllinois
CountyTazewell
TownshipWashington
Founded byWilliam Holland Sr.
Government
  TypeCouncil–manager
  MayorGary W. Manier
  City AdministratorRay Forsythe
Area
  Total
8.56 sq mi (22.17 km2)
  Land8.54 sq mi (22.13 km2)
  Water0.01 sq mi (0.03 km2)
Elevation
757 ft (231 m)
Population
 (2020)
  Total
16,071
  Density1,880.75/sq mi (726.17/km2)
Time zoneUTC−6 (CST)
  Summer (DST)UTC−5 (CDT)
ZIP Code(s)
61571
Area code309
FIPS code17-79033
GNIS feature ID2397206
Wikimedia CommonsWashington, Illinois
Websiteci.washington.il.us

Washington is a city in Tazewell County, Illinois, United States. Washington is on U.S. Route 24 and Illinois Route 8, northeast of East Peoria. The population was 16,071 at the 2020 census, a 48.2% percent increase over 2000. It is a suburb of Peoria and is part of the Peoria Metropolitan Statistical Area.