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Peoria County, Illinois

Peoria County, Illinois
Peoria - Downtown from Caterpillar, Courthouse Square, First National Bank and Savings Tower.jpg
Courthouse Square in Peoria
Seal of Peoria County, Illinois
Seal
Map of Illinois highlighting Peoria County
Location in the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded 1825
Named for Peoria tribe
Seat Peoria
Largest city Peoria
Area
 • Total 631 sq mi (1,634 km2)
 • Land 619 sq mi (1,603 km2)
 • Water 11 sq mi (28 km2), 1.8%
Population
 • (2010) 186,494
 • Density 301/sq mi (116/km²)
Congressional districts 17th, 18th
Time zone Central: UTC-6/-5
Website www.co.peoria.il.us
Peoria, Illinois
Climate chart ()
J F M A M J J A S O N D
 
 
1.5
 
 
31
14
 
 
1.7
 
 
37
20
 
 
2.8
 
 
49
30
 
 
3.6
 
 
62
40
 
 
4.2
 
 
73
51
 
 
3.8
 
 
82
60
 
 
4
 
 
86
65
 
 
3.2
 
 
84
63
 
 
3.1
 
 
77
54
 
 
2.8
 
 
64
42
 
 
3
 
 
49
31
 
 
2.4
 
 
35
20
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel
J F M A M J J A S O N D
 
 
1.5
 
 
31
14
 
 
1.7
 
 
37
20
 
 
2.8
 
 
49
30
 
 
3.6
 
 
62
40
 
 
4.2
 
 
73
51
 
 
3.8
 
 
82
60
 
 
4
 
 
86
65
 
 
3.2
 
 
84
63
 
 
3.1
 
 
77
54
 
 
2.8
 
 
64
42
 
 
3
 
 
49
31
 
 
2.4
 
 
35
20
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel