| Place Name | Underwood |
| Place Type | City |
| ZIP Code(s) | 56586 |
| County | Otter Tail County |
| Area Code(s) | 218 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 348 |
| Population Growth Rate (2010-19) | 4.40% |
| Majority Ethnicity | White 97.77% |
| Metro/Micro Stats Area | Fergus Falls, MN |
| US Congressional District(s) | Minnesota 7th |
| State House Districts | 08A |
| State Senate Districts | 8 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.77% |
| African American | 0.25% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.98% |