Onslow, IA
Population 306 · Iowa
About Onslow, IA
Onslow is a small community in Iowa with a population of 306 residents. The median household income is $42,813 per year, which is below the national average. The median age in Onslow is 28 years.
Housing in Onslow has a median home value of $96,500 and median monthly rent of $0. Of the 118 total housing units, the majority are owner-occupied, with 85 owner-occupied and 18 renter-occupied units.
The unemployment rate in Onslow is 0.9% and the poverty rate is 34.6%. 14.3% of residents hold a bachelor's degree or higher. The average commute time is 29.2 minutes.
Cost of Living in Onslow, IA
Compared to national averages, Onslow has a median household income of $42,813 (43% below the national median of $75,149). Home values average $96,500, which is 61% below the national median. Monthly rent at $0 is 100% below the US average of $1,163. Within Iowa, Onslow's income is 37% below the state average of $67,947, and home values are 27% below the state median of $132,237.
Why Live in Onslow, IA?
Onslow offers affordable housing with a median home value of $96,500, below the US average of $244,900, and rent that’s lower than the national average at $0/month, and a strong job market with an unemployment rate of just 0.9%.
Potential considerations include median household income ($42,813) that falls below the national average. However, Onslow’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Onslow has a population of 306 with a median age of 28 years. Compare Onslow with other cities to see how it stacks up, or explore all cities in Iowa.
Similar Cities Near Onslow
Cities in Iowa with a similar population size.
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Iowa
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Onslow With Other Cities
Frequently Asked Questions about Onslow
What is the population of Onslow, IA?
The population of Onslow, IA is 306 according to the latest Census data.
What is the median household income in Onslow?
The median household income in Onslow, IA is $42,813 per year.
What is the median home value in Onslow?
The median home value in Onslow, IA is $96,500.
What is the average rent in Onslow?
The median monthly rent in Onslow, IA is $0.
What is the unemployment rate in Onslow?
The unemployment rate in Onslow, IA is 0.9%.