Waukesha County, Wisconsin | ||
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County | ||
Waukesha County Courthouse
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Map of Wisconsin showing Waukesha County |
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Wisconsin's location in the United States |
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Country | United States | |
State | Wisconsin | |
Region | Southeastern Wisconsin | |
Metro area | Metro Milwaukee | |
Incorporated | 1846 | |
County seat | Waukesha, Wisconsin | |
Largest city | Waukesha, Wisconsin | |
Area | ||
• Total | 581 sq mi (1,500 km2) | |
• Land | 550 sq mi (1,400 km2) | |
• Water | 31 sq mi (80 km2) | |
Area rank | 53rd largest county in Wisconsin | |
Population (2010) | ||
• Total | 389,891 | |
• Rank | 3rd largest county in Wisconsin | |
• Density | 709/sq mi (274/km2) | |
Time zone | Central (UTC-6) | |
• Summer (DST) | Central (UTC-5) | |
Area codes | 262, 414 | |
Congressional districts | 1st, 5th | |
Interstates |
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U.S. Routes |
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State Routes |
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Airports | Waukesha County Airport Capitol Airport | |
Website | Waukesha County Official Website |