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Onslow city, IA

ZIP 52321 — 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 52321

52321 has a population of 456 with a median age of 40.8 yrs (61.4% male).

Race & Ethnicity
White
94.7%+54% vs US avg
x
Black
2.0%-84% vs US avg
x
Asian
0.0%
x
Hispanic
1.5%-92% vs US avg
x
Other / Two+
1.8%
x
Age Groups
0–17
27.4%+25% vs US avg
x
18–64
43.6%-29% vs US avg
x
65+
28.9%+78% vs US avg
x
Education
Less than HS
1.0%-91% vs US avg
x
High school
45.4%+73% vs US avg
x
Some college
41.5%+43% vs US avg
x
Bachelor's+
12.2%-64% vs US avg
x
Marital Status
Married
45.2%-6% vs US avg
x
Never married
39.3%+16% vs US avg
x
Divorced
10.7%+4% vs US avg
x
Widowed / Separated
4.8%
x
Diversity Index
10/100

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

Social & household profile

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

Poverty Rate
23.3%+102% vs US avg
x
Foreign Born
0.0%
x
Veterans
6.7%+11% vs US avg
x
Disability
14.5%+8% vs US avg
x
Single Parent
16.4%+103% vs US avg
x
Recent Births
40.5%+599% vs US avg
x
Top ancestry
GermanIrishEnglish

Health & Community Indicators in 52321

Poverty Rate
23.3%+102% vs US avg
x
Veterans
6.7%+11% vs US avg
x
Foreign Born
0.0%
x
Single Parent
16.4%+103% vs US avg
x
Disability
14.5%+8% vs US avg
x
Uninsured
3.3%-59% vs US avg
x
SNAP Benefits
18.0%+54% vs US avg
x
Private School
0.0%
x
Recent Births
40.5%+599% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population456
Median age40.8
Poverty rate23.3%
Demographics statistics
Demographics
White94.7%
Hispanic1.5%
Black2.0%
Asian0.0%
Foreign-born0.0%