
Oconomowoc
- County:
- Waukesha County
- County Seat:
- No
- Area (mi²):
- 11.762
- State:
- Wisconsin
Oconomowoc is a city located in Waukesha County, Wisconsin. Oconomowoc has a 2025 population of 18,973. Oconomowoc is currently growing at a rate of 0.78% annually and its population has increased by 3.99% since the most recent census, which recorded a population of 18,245 in 2020.
The average household income in Oconomowoc is $126,689 with a poverty rate of 7.25%. The median age in Oconomowoc is 43.1 years: 40.9 years for males, and 45.3 years for females.