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Will County, IL

Will County, Illinois
Map of Illinois highlighting Will County
Location in the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded January 12, 1836
Named for Dr. Conrad Will
Seat Joliet
Largest city Joliet
Area
 • Total 849 sq mi (2,199 km2)
 • Land 837 sq mi (2,168 km2)
 • Water 12 sq mi (31 km2), 1.5%
Population (est.)
 • (2015) 687,263
 • Density 810/sq mi (313/km²)
Congressional districts 1st, 2nd, 3rd, 11th, 14th, 16th
Time zone Central: UTC-6/-5
Website www.willcountyillinois.com
Joliet, Illinois
Climate chart ()
J F M A M J J A S O N D
 
 
1.6
 
 
30
13
 
 
1.6
 
 
35
19
 
 
2.5
 
 
47
28
 
 
3.8
 
 
60
37
 
 
3.9
 
 
72
48
 
 
4.2
 
 
81
58
 
 
4.3
 
 
85
63
 
 
3.8
 
 
82
61
 
 
3.1
 
 
76
53
 
 
2.7
 
 
64
41
 
 
3
 
 
48
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
 
 
1.6
 
 
30
13
 
 
1.6
 
 
35
19
 
 
2.5
 
 
47
28
 
 
3.8
 
 
60
37
 
 
3.9
 
 
72
48
 
 
4.2
 
 
81
58
 
 
4.3
 
 
85
63
 
 
3.8
 
 
82
61
 
 
3.1
 
 
76
53
 
 
2.7
 
 
64
41
 
 
3
 
 
48
31
 
 
2.4
 
 
35
20
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel