Joliet, Illinois

Joliet, Illinois
Downtown
Etymology: Louis Jolliet
Location of Joliet in Will and Kendall counties in Illinois
Joliet
Joliet
Joliet
Coordinates: 41°31′47″N 88°04′22″W / 41.52972°N 88.07278°W / 41.52972; -88.07278
Country United States
State Illinois
CountiesWill, Kendall
TownshipsJoliet, Troy, Plainfield, Lockport, New Lenox, Jackson, Channahon, Seward, Na-Au-Say
Settled1833
Incorporated1852
Named afterLouis Jolliet
Government
  TypeCouncil–manager
  MayorTerry D'Arcy Marie Ann Woods - (Independent)
Area
  Total
65.82 sq mi (170.48 km2)
  Land65.08 sq mi (168.56 km2)
  Water0.74 sq mi (1.92 km2)
Elevation
610 ft (190 m)
Population
 (2020)
  Total
150,362
  RankUS: 178th
  Density2,310.31/sq mi (892.02/km2)
Time zoneUTC−6 (CST)
  Summer (DST)UTC−5 (CDT)
ZIP codes
60431–60436, 60441, 60586
Area code(s)815, 779
FIPS code17-38570
AirportJoliet Regional Airport
GNIS feature ID2395477
DemonymJolietan
Wikimedia CommonsJoliet, Illinois
Websitewww.joliet.gov

Joliet (/ˈliɛt, ˌliˈɛt/ JOH-lee-et, -ET) is a city in Will and Kendall counties in the U.S. state of Illinois, located 40 miles (64 km) southwest of Chicago. It is the county seat of Will County. It had a population of 150,362 at the 2020 census, making it the third-most populous city in Illinois.