DuPage County
| DuPage County, Illinois | ||
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| County | ||
| County of DuPage | ||
Warrenville Grove Forest Preserve on the West Branch of the DuPage River
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| Motto: The Magnificent Miles West of Chicago | ||
 Location in the U.S. state of Illinois |
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 Illinois's location in the U.S. |
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| Founded | February 9, 1839 | |
| Named for | DuPage River | |
| Seat | Wheaton | |
| Largest city | Naperville | |
| Area | ||
| • Total | 336 sq mi (870 km2) | |
| • Land | 327 sq mi (847 km2) | |
| • Water | 8.9 sq mi (23 km2), 2.6% | |
| Population | ||
| • (2010) | 916,924 | |
| • Density | 2,800/sq mi (1,081/km²) | |
| Area code(s) | 630 and 331 | |
| Congressional districts | 3rd, 5th, 6th, 8th, 11th, 14th | |
| Time zone | Central: UTC-6/-5 | |
| Website | www |
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| Footnotes: | ||
| Wheaton, Illinois | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Climate chart () | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| J | F | M | A | M | J | J | A | S | O | N | D |
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1.9
32
14
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1.6
38
19
|
2.6
50
28
|
3.8
63
38
|
3.9
75
48
|
3.9
84
57
|
4
87
63
|
4.6
85
61
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3.4
78
53
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2.7
67
42
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3.2
50
32
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2.5
37
20
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| Average max. and min. temperatures in °F | |||||||||||
| Precipitation totals in inches | |||||||||||
| Source: The Weather Channel | |||||||||||
| Metric conversion | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| J | F | M | A | M | J | J | A | S | O | N | D |
|
47
0
−10
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40
3
−7
|
67
10
−2
|
97
17
3
|
100
24
9
|
99
29
14
|
101
31
17
|
117
29
16
|
86
26
12
|
...
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