| Place Name | Sullivan |
| Place Type | Village |
| ZIP Code(s) | 53178 |
| County | Jefferson County |
| Area Code(s) | 262 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 846 |
| Population Growth Rate (2010-19) | -2.69% |
| Majority Ethnicity | White 95.2% |
| Metro/Micro Stats Area | Watertown-Fort Atkinson, WI |
| US Congressional District(s) | Wisconsin 5th |
| State Assembly Districts | 33 |
| State Senate Districts | 11 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.2% |
| African American | 0% |
| Hispanic | 0.58% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.22% |