Onslow

County:: Jones County
County Seat:: No
Area (mi²):: 0.194
State:: Iowa

Onslow is a city located in Jones County, Iowa. Onslow has a 2025 population of 194. Onslow is currently declining at a rate of -0.51% annually and its population has decreased by -2.02% since the most recent census, which recorded a population of 198 in 2020.

The average household income in Onslow is $58,915 with a poverty rate of 34.64%.The median age in Onslow is 28 years: 22.4 years for males, and 31.5 years for females.

Demographics

The racial composition of Onslow includes 92.16% White, and smaller percentages for Black or African American, Native American, Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	282	92.16%
Black or African American	9	2.94%
Native American	8	2.61%
Two or more races	7	2.29%

Onslow Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Onslow's average per capita income is $36,827. Household income levels show a median of $42,813. The poverty rate stands at 34.64%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$91,250	-
Families	$62,656	$67,682
Households	$42,813	$58,915
Non Families	$19,583	$32,950

$36,827

Average Income

$42,813

Median Household Income

34.64%

Poverty Rate