| Place Name | Hanover |
| Place Type | Census Designated Place |
| ZIP Code(s) | 53548 53576 |
| County | Rock County |
| Area Code(s) | 608 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 184 |
| Population Growth Rate (2010-19) | -1.10% |
| Majority Ethnicity | White 97.41% |
| Metro/Micro Stats Area | Janesville-Beloit, WI |
| US Congressional District(s) | Wisconsin 2nd |
| State Assembly Districts | 43 |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.41% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.59% |