Peoria County Logo

Peoria County is located in the U.S. state of Illinois. The 2020 United States Census listed its population at 181,830. Its county seat is Peoria. Peoria County is part of the Peoria metropolitan area.
  • Country: United States
  • State: Illinois
  • Founded: 1825
  • Named for: Peoria tribe
  • Seat: Peoria
  • Largest city: Peoria
  • 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

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Data from: en.wikipedia.org