Peoria is a city in Peoria County, Illinois, United States, and its county seat. Located on the Illinois River, the city had a population of 113,150 as of the 2020 census, making it the eighth-most populous city in Illinois. It is the principal city of the Peoria metropolitan area in Central Illinois, consisting of Fulton, Marshall, Peoria, Stark, Tazewell, and Woodford counties and had a combined population of 402,391 in 2020. Established in 1691 by the French explorer Henri de Tonti, Peoria is the oldest permanent European settlement in Illinois, according to the Illinois State Archaeological Survey. The city received its current name when the County of Peoria was organized in 1825 and was named after the Peoria people, a member of the Illinois Confederation. On October 16, 1854, Abraham Lincoln made his Peoria speech against the Kansas–Nebraska Act.

Country: United States
State: Illinois
County: Peoria
Townships: Kickapoo, Medina, Peoria City, Radnor, Richwoods, West Peoria
Settled: 1691
Incorporated Town: 1835
Incorporated City: 1845
Named for: Peoria people
Type: Council-Manager
Mayor: Rita Ali (D)
Population (2020): 113,150 (8th in Illinois)
Estimate (2024): 111,696
Urban: 259,781 (US: 156th)
Metro: 402,391 (US: 138th)
Demonym(s): Peorian
Time zone: CST (UTC−6)
Summer (DST): CDT (UTC−5)
Area code(s): 309
FIPS code: 17-59000
GNIS feature ID: 2396178
Website: [www.peoriagov.org]
Official Website: http://www.peoriagov.org/
Wikidata description: county seat of Peoria County, Illinois, United States
Wikidata id: Q233129
Wikidata label: Peoria
Wikidata aliases: Array
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