| Place Name | Waltham Township |
| Place Type | Township |
| ZIP Code(s) | 55918 55973 55982 |
| County | Mower County |
| Area Code(s) | 507 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 359 |
| Majority Ethnicity | White 98.6% |
| Metro/Micro Stats Area | Austin, MN |
| US Congressional District(s) | Minnesota 1st |
| State House Districts | 27B |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.6% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 1.4% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |