Onslow Flag

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 2026 population of 197. Onslow is currently declining at a rate of 0% annually and its population has decreased by -1.01% since the most recent census, which recorded a population of 199 in 2020.

The median household income in Onslow is $65,313 with a poverty rate of 29.23%. The median age in Onslow is 30 years: 22.4 years for males, and 33.1 years for females. For every 100 females there are 98.6 males.

197
Total Population
1,015
Density (mi²)

Onslow Population

Onslow Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202619700%
2025197-1-0.51%
2024198-1-0.5%
2023199-2-1%
202220100%
202120121.01%
202019900%
201919300%
201819300%
2017193-1-0.52%
201619410.52%
2015193-1-0.52%
201419400%
201319400%
2012194-3-1.52%
201119700%
201019700%

Median Age

Overall: 30 years
Female: 33.1 years
Male: 22.4 years

Onslow Adults

There are 173 adults, (18 of whom are seniors) in Onslow.

Sex Ratio

Female: 143 (50.4%)
Male: 141 (49.6%)

Demographics

The racial composition of Onslow includes 90.85% White, 4.58% Black or African American, and smaller percentages for Two or more races, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White25890.85%
Black or African American134.58%
Two or more races82.82%
Native American51.76%
Race
Population ↓
Percentage (of total)
Two or more races82.82%
Race
Population ↓
Percentage (of total)
White25890.85%
Black or African American134.58%
Native American51.76%

Onslow Marital Status

Economics and Income Statistics

Onslow 's average per capita income is $40,417. Household income levels show a median of $65,313. The poverty rate stands at 29.23%.

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$94,583-
Families$67,344$74,518
Households$65,313$66,173
Non Families$28,750$42,472

$40,417

Average Income

$65,313

Median Household Income

29.23%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)