City in Waukesha County, Wisconsin · 11.8 sq mi · 1,738 people per sq mi
About 21,000 people live in Oconomowoc. The typical household earns $106,425, and the median resident is 42.6 years old.
2026 projection
From 18,214 in 2020
Poverty rate 7.73%
Men 40.5 · Women 46.1
1860–2026
20,547
2026 projection
12.8% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1860–2026
20,547
2026 projection
12.8% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 20,547 | +428 | 2.13% |
|---|---|---|---|
| 2025 | 20,119 | +191 | 0.96% |
| 2024 | 19,928 | +254 | 1.29% |
| 2023 | 19,674 | +467 | 2.43% |
| 2022 | 19,207 | +861 | 4.69% |
| 2021 | 18,346 | +132 | 0.72% |
| 2020 | 18,214 | +1,221 | 7.19% |
| 2019 | 16,993 | +165 | 0.98% |
| 2018 | 16,828 | +97 | 0.58% |
| 2017 | 16,731 | +172 | 1.04% |
Showing 10 of 32 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 191 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 13 residents
53% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 53% | 57% | 49% |
| Never married | 29% | 31% | 28% |
| Divorced | 11% | 8% | 13% |
| Widowed | 7% | 3% | 10% |
| Separated | 1% | 2% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau