| Place Name | Fontana-on-Geneva Lake |
| Place Type | Village |
| ZIP Code(s) | 53125 53184 |
| County | Walworth County |
| Area Code(s) | 262 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 1,436 |
| Population Growth Rate (2010-19) | 86.60% |
| Majority Ethnicity | White 96.29% |
| Metro/Micro Stats Area | Whitewater, WI |
| US Congressional District(s) | Wisconsin 1st |
| State Assembly Districts | 31 |
| State Senate Districts | 11 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.29% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 2.18% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.53% |