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Angostura CDP, SD

ZIP 57747 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 57747

57747 has a population of 5,889 with a median age of 59.4 yrs (48.7% male).

Race & Ethnicity
White
86.6%+41% vs US avg
x
Black
0.0%
x
Asian
0.7%-88% vs US avg
x
Hispanic
2.6%-86% vs US avg
x
Other / Two+
10.1%
x
Age Groups
0–17
14.4%-34% vs US avg
x
18–64
49.6%-20% vs US avg
x
65+
36.0%+121% vs US avg
x
Education
Less than HS
9.7%-13% vs US avg
x
High school
30.0%+14% vs US avg
x
Some college
38.4%+33% vs US avg
x
Bachelor's+
21.9%-35% vs US avg
x
Marital Status
Married
58.7%+22% vs US avg
x
Never married
15.8%-53% vs US avg
x
Divorced
18.5%+79% vs US avg
x
Widowed / Separated
7.0%
x
Diversity Index
24/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
18.9%+64% vs US avg
x
Foreign Born
0.0%
x
Veterans
15.9%+165% vs US avg
x
Disability
24.4%+82% vs US avg
x
Single Parent
4.3%-46% vs US avg
x
Recent Births
61.2%+955% vs US avg
x
Top ancestry
GermanIrishEnglish

Health & Community Indicators in 57747

Poverty Rate
18.9%+64% vs US avg
x
Veterans
15.9%+165% vs US avg
x
Foreign Born
0.0%
x
Single Parent
4.3%-46% vs US avg
x
Disability
24.4%+82% vs US avg
x
Uninsured
12.8%+61% vs US avg
x
SNAP Benefits
11.2%-4% vs US avg
x
Private School
0.0%
x
Recent Births
61.2%+955% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population5,889
Median age59.4
Poverty rate18.9%
Demographics statistics
Demographics
White86.6%
Hispanic2.6%
Black0.0%
Asian0.7%
Foreign-born0.0%