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, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Native American

Two or more races

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other 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%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

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