| Place Name | Spencer Township |
| Place Type | Township |
| ZIP Code(s) | 56431 |
| County | Aitkin County |
| Area Code(s) | 218 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 527 |
| Majority Ethnicity | White 97.77% |
| US Congressional District(s) | Minnesota 8th |
| State House Districts | 10B |
| State Senate Districts | 10 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.77% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.23% |