Angostura Flag

Angostura

County:
Custer County
County Seat:
No
Area (mi²):
12.586
State:
South Dakota

Angostura is a CDP located in Custer County, South Dakota. Angostura has a 2025 population of 148. Angostura is currently growing at a rate of 7.25% annually and its population has increased by 97.33% since the most recent census, which recorded a population of 75 in 2020.

The average household income in Angostura is $138,818 with a poverty rate of 6.14%. The median age in Angostura is 53.3 years: 43.6 years for males, and 53.7 years for females.

148
Total Population
12
Density (mi²)
10 7.25%
Growth

Angostura Population

Angostura Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Angostura includes 94.74% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race
Population
Percentage (of total)
White10894.74%
Two or more races65.26%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%

Angostura Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Angostura's average per capita income is $95,568. Household income levels show a median of $135,893. The poverty rate stands at 6.14%.

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
Households$135,893$138,818
Families$135,089$127,502
Married Families$135,089-
Non Families--

$95,568

Average Income

$135,893

Median Household Income

6.14%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)