Onslow city, Iowa Demographics & Population 2026
As of 2026, Onslow city, Iowa has a total population of 306, the 602nd largest city in Iowa, with a median household income of $42,813, which is 41% lower than the state average. The poverty rate is 34.6%.
Key Takeaways
- Household income is 41% below the state average, indicating significant economic challenges.
- More than 1 in 4 residents live below the poverty line (34.6%), well above the national average of 12.4%.
- Housing is very affordable with a home-value-to-income ratio of just 2.3x.
- Near full employment with an unemployment rate of just 0.9%.
Onslow city Quick Facts
How Onslow city Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 30 | National average: 60
Education
Educational Attainment (Adults 25+)
Onslow city Rankings in Iowa
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Cities Similar to Onslow city
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Cantril city | 307 | $37,500 | $76,200 | 17.3% | 8.3% |
| Deloit city | 309 | $37,917 | $68,800 | 12.2% | 14.9% |
| Kimballton city | 294 | $39,583 | $77,000 | 13.1% | 34.7% |
| Irwin city | 297 | $47,917 | $71,100 | 25.9% | 12.9% |
| Lytton city | 325 | $45,250 | $60,000 | 14.9% | 9.2% |
Population Overview
Onslow city is a small community located in Iowa. The total population is 306. It ranks as the 602nd most populous out of 1,018 cities and towns in Iowa.
Age Demographics
The median age in Onslow city is 28.0 years. This is 27% lower than the state median of 38.6 years. With 40.8% of the population under 18, Onslow city has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Onslow city is $42,813. This is 41% lower than the state median of $73,147. Compared to the national median of $78,538, household income here is 45% lower. The poverty rate stands at 34.6%. This is 215% higher than the state poverty rate of 11.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 0.9%. This is 77% lower than the state rate of 3.6%. The median home value is $96,500. Housing costs are 51% lower than the state median of $195,900. With a home-value-to-income ratio of just 2.3x, Onslow city is one of the most affordable housing markets in the area. 82.5% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 71.5%.
Race & Ethnicity
Onslow city has a predominantly White (non-Hispanic) population, comprising 92.2% of all residents. Black or African American residents account for 2.9%. The Hispanic or Latino population (2.3%) is well below the state average of 7.0%.
Education
14.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.1%.
Data Sources & Methodology
All demographic data for Onslow city, Iowa 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 Iowa state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,018 Census-designated places in Iowa. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of Onslow city, Iowa?
Onslow city, Iowa has a population of 306 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Onslow city, IA?
The median household income in Onslow city is $42,813, which is 45% lower the national median of $78,538.
What is the poverty rate in Onslow city, IA?
The poverty rate in Onslow city is 34.6%. This means approximately 106 residents live below the federal poverty line.
What is the racial makeup of Onslow city, Iowa?
Onslow city's population is 92.2% White, 2.9% Black, 2.3% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Onslow city, IA?
The median home value in Onslow city is $96,500. The home-value-to-income ratio is 2.3x.
How educated is Onslow city, Iowa?
14.3% of adults (25+) in Onslow city hold a bachelor's degree or higher, and 5.0% hold a graduate or professional degree.