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 198. Onslow is currently declining at a rate of -0.5% annually and its population has decreased by -0.5% since the most recent census, which recorded a population of 199 in 2020.

198
Total Population
1,020
Density (mi²)
-1 -0.5%
Growth

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)