Angostura CDP, South Dakota Demographics & Population 2026

Population Overview

Angostura CDP is a small community located in South Dakota. The total population is 114. It ranks as the 288th most populous out of 439 cities and towns in South Dakota.

Age Demographics

The median age in Angostura CDP is 53.3 years. This is 41% higher than the state median of 37.7 years. 21.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Angostura CDP is $135,893. This is 88% higher than the state median of $72,421. Compared to the national median of $78,538, household income here is 73% higher. The poverty rate stands at 6.1%. This is 49% lower than the state poverty rate of 12.0%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.0%. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.

Race & Ethnicity

Angostura CDP has a predominantly White (non-Hispanic) population, comprising 94.7% of all residents.

Education

23.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 26% lower than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 100.0%.

Data Sources & Methodology

All demographic data for Angostura CDP, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against South Dakota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 439 Census-designated places in South Dakota. For official data, visit data.census.gov.