New Underwood is a city located in Pennington County, South Dakota. New Underwood has a 2025 population of 611 . New Underwood is currently growing at a rate of 0.16% annually and its population has increased by 0.99% since the most recent census, which recorded a population of 605 in 2020.
The average household income in New Underwood is $61,571 with a poverty rate of 23.46%. The median age in New Underwood is 38.6 years: 39.7 years for males, and 36.8 years for females. For every 100 females there are 95.6 males.
Data after 2023 is projected based on recent change
The racial composition of New Underwood includes 79.18% White, 10.41% Native American, and smaller percentages for Black or African American and multiracial populations.
White (79.18%)
Native American (10.41%)
Two or more races (9.85%)
Black or African American (0.56%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 426 | 79.18% |
| Native American | 56 | 10.41% |
| Two or more races | 53 | 9.85% |
| Black or African American | 3 | 0.56% |
Married
Widowed
Divorced
Separated
Never Married
New Underwood's average per capita income is $39,432. Household income levels show a median of $54,167. The poverty rate stands at 23.46%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,417 | - |
| Families | $69,375 | $74,183 |
| Households | $54,167 | $61,571 |
| Non Families | - | $28,842 |
Average Income
Median Household Income
Poverty Rate