Peoria County, Illinois

Peoria County
Flag of Peoria County
Official seal of Peoria County
Map of Illinois highlighting Peoria County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 40°47′N 89°46′W / 40.79°N 89.76°W / 40.79; -89.76
Country United States
State Illinois
Founded1825
Named forPeoria tribe
SeatPeoria
Largest cityPeoria
Area
 • Total631 sq mi (1,630 km2)
 • Land619 sq mi (1,600 km2)
 • Water11 sq mi (30 km2)  1.8%
Population
 (2020)
 • Total181,830
 • Density290/sq mi (110/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
ZIP Codes
61451, 61517, 61523, 61525, 61526, 61528, 61529, 61531, 61533, 61536, 61539, 61547, 61552, 61559, 61562, 61569, 61601, 61602, 61603, 61604, 61605, 61606, 61607, 61612, 61613, 61614, 61615, 61616, 61625, 61629, 61630, 61633, 61634, 61636, 61637, 61638, 61639, 61641, 61643, 61650, 61651, 61652, 61653, 61654, 61655, 61656
Congressional districts16th, 17th
Websitehttps://www.peoriacounty.org

Peoria County is located in the U.S. state of Illinois. The 2020 United States Census listed its population at 181,830.[1] Its county seat is Peoria.[2] Peoria County is part of the Peoria metropolitan area.

  1. ^ "QuickFacts Peoria County, Illinois". United States Census. US Census Bureau.
  2. ^ "Peoria County, Illinois".

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