| Place Name | Underwood |
| Place Type | City |
| ZIP Code(s) | 58576 |
| County | Mclean County |
| Area Code(s) | 701 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 741 |
| Population Growth Rate (2010-19) | 0.77% |
| Majority Ethnicity | White 95.49% |
| US Congressional District(s) | North Dakota At-Large |
| State House Districts | 8 |
| State Senate Districts | 8 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.49% |
| African American | 0.42% |
| Hispanic | 1.27% |
| Asian | 0.56% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.25% |