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Oacoma town, SD

ZIP 57365 — 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 57365

57365 has a population of 619 with a median age of 51.8 yrs (57.2% male).

Race & Ethnicity
White
96.6%+57% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
2.3%-88% vs US avg
x
Other / Two+
1.1%
x
Age Groups
0–17
20.8%-5% vs US avg
x
18–64
46.5%-25% vs US avg
x
65+
32.6%+100% vs US avg
x
Education
Less than HS
6.8%-39% vs US avg
x
High school
43.7%+67% vs US avg
x
Some college
27.4%-5% vs US avg
x
Bachelor's+
22.1%-34% vs US avg
x
Marital Status
Married
63.4%+32% vs US avg
x
Never married
24.6%-27% vs US avg
x
Divorced
6.3%-39% vs US avg
x
Widowed / Separated
5.7%
x
Diversity Index
7/100

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

Social & household profile

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

Poverty Rate
6.1%-47% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Veterans
15.2%+153% vs US avg
x
Disability
13.8%+3% vs US avg
x
Single Parent
6.1%-25% vs US avg
x
Recent Births
81.6%+1307% vs US avg
x
Top ancestry
GermanAmericanNorwegian

Health & Community Indicators in 57365

Poverty Rate
6.1%-47% vs US avg
x
Veterans
15.2%+153% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Single Parent
6.1%-25% vs US avg
x
Disability
13.8%+3% vs US avg
x
Uninsured
8.4%+5% vs US avg
x
SNAP Benefits
7.2%-39% vs US avg
x
Private School
0.0%
x
Recent Births
81.6%+1307% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population619
Median age51.8
Poverty rate6.1%
Demographics statistics
Demographics
White96.6%
Hispanic2.3%
Black0.0%
Asian0.0%
Foreign-born100.0%