Waukesha County, Wisconsin | |
|---|---|
 Waukesha County Courthouse | |
 Flag  Seal | |
| Motto: "Leading the way!" | |
 Map of Wisconsin showing Waukesha County | |
 Wisconsin's location in the contiguous United States | |
| Country |  United States |
| State |  Wisconsin |
| Incorporated | 1846 |
| County seat | Waukesha |
| Largest city | Waukesha |
| Area | |
• Total | 581 sq mi (1,500 km2) |
| • Land | 550 sq mi (1,400 km2) |
| • Water | 31 sq mi (80 km2) |
| Population | |
• Total | 406,978 |
• Estimate (2023) | 412,591  |
| • Rank | 3rd largest county in Wisconsin |
| • Density | 740.3/sq mi (285.8/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (Central) |
| 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 | www |
Waukesha County (/ˈwɔːkɪʃɔː/ ) is a county in the U.S. state of Wisconsin. As of the 2020 United States Census, the population was 406,978, making it the third-most populous county in Wisconsin. Its median income of $88,985 placed it as the only county in Wisconsin on the list of the 100 highest-income counties in the U.S. by median income as of 2020.[2] Its county seat and largest city is Waukesha.[3]
Waukesha County is included in the Milwaukee–Waukesha–West Allis, WI Metropolitan Statistical Area.
- ^ "QuickFacts: Waukesha County, Wisconsin". www.census.gov. U.S. Census Bureau. Retrieved July 2, 2022.
- ^ "QuickFacts". United States Census Bureau. Retrieved September 7, 2022.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.