| Official Name: | Hanover, Wisconsin |
| Settlement Type: | Census-designated place |
| Mapsize: | 260px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Wisconsin |
| Subdivision Type2: | County |
| Subdivision Name2: | Rock |
| Area Total Sq Mi: | 0.574 |
| Area Land Sq Mi: | 0.574 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Total: | 179 |
| Population Density Sq Mi: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 794 |
| Coordinates: | 42.6386°N -89.1619°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 53542[1] |
| Area Code: | 608 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1566042 |
Hanover is an unincorporated census-designated place located in the town of Plymouth, Rock County, Wisconsin, United States. It is west of Janesville and east of Orfordville. As of the 2020 census, its population was 179.[2]
Hanover was originally called Bass Creek.[3] The present name is after Hanover, Germany, the native home of a large share of the early settlers. A post office was established as Bass Creek in 1856 and renamed Hanover in 1859; the post office closed in 2014.[4] [5]