New Underwood

County:: Pennington County
County Seat:: No
Area (mi²):: 1.459
State:: South Dakota

New Underwood is a city located in Pennington County, South Dakota. New Underwood has a 2025 population of 621. New Underwood is currently growing at a rate of 0.98% annually and its population has increased by 4.72% since the most recent census, which recorded a population of 593 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.

Demographics

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.

Population by Race

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%

New Underwood Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$90,417	-
Families	$69,375	$74,183
Households	$54,167	$61,571
Non Families	-	$28,842

$39,432

Average Income

$54,167

Median Household Income

23.46%

Poverty Rate