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Isabel town, SD

ZIP 57633 — People & Community

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

Middle ClassLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 57633

57633 has a population of 421 with a median age of 38.4 yrs (51.1% male).

Race & Ethnicity
White
82.0%+33% vs US avg
x
Black
0.2%-98% vs US avg
x
Asian
0.0%
x
Hispanic
0.0%
x
Other / Two+
17.8%
x
Age Groups
0–17
25.4%+16% vs US avg
x
18–64
57.7%-6% vs US avg
x
65+
16.9%+3% vs US avg
x
Education
Less than HS
8.3%-25% vs US avg
x
High school
27.8%+6% vs US avg
x
Some college
43.7%+51% vs US avg
x
Bachelor's+
20.2%-40% vs US avg
x
Marital Status
Married
56.0%+16% vs US avg
x
Never married
28.0%-17% vs US avg
x
Divorced
10.4%+1% vs US avg
x
Widowed / Separated
5.6%
x
Diversity Index
30/100

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

Social & household profile

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

Poverty Rate
4.0%-65% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Veterans
6.0%+1% vs US avg
x
Disability
10.7%-20% vs US avg
x
Single Parent
0.8%-90% vs US avg
x
Top ancestry
GermanIrishAmerican

Health & Community Indicators in 57633

Poverty Rate
4.0%-65% vs US avg
x
Veterans
6.0%+1% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Single Parent
0.8%-90% vs US avg
x
Disability
10.7%-20% vs US avg
x
Uninsured
9.5%+19% vs US avg
x
SNAP Benefits
5.1%-56% vs US avg
x
Private School
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population421
Median age38.4
Poverty rate4.0%
Demographics statistics
Demographics
White82.0%
Hispanic0.0%
Black0.2%
Asian0.0%
Foreign-born100.0%