Oconomowoc city, Wisconsin
Official LSAD Designation: Oconomowoc city • Census GEOID: 5559250
• Waukesha County
Oconomowoc city is an incorporated city in Waukesha County, Wisconsin. According to official records from the Census (2025), Oconomowoc city had an estimated population of 20,119 residents. Official Census Bureau geographic records classify this community under LSAD designation Oconomowoc city (GEOID 5559250).
Local Government Administration U.S. Census Bureau GMAF
City Of Oconomowoc
Municipal
Official Title:
Mayor
Address:
PO BOX 27, OCONOMOWOC WI 53066-0027
County Of Waukesha
County
Official Title:
Budget Management Specialist
Address:
515 W MORELAND BLVD, STE G72, WAUKESHA WI 53188-2428
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 20,119 | 2025 |
| Median Household Income | $106,425 | 2020-2024 |
| Median Home Value | $394,500 | 2020-2024 |
| Land Area | 11.82 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).