StatisticOnslowIowaNational
Population2193,155,070328,239,523
Population density (sq mi)9725791
Median age34.538.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)65%60%55%
Families w/ Kids under 1851%44%43%
Speak English95%92%79%
Speak Spanish3%4%13%

Key findings

  • The population density in Onslow is 1606% higher than Iowa
  • The median age in Onslow is 9% lower than Iowa
  • In Onslow 93.15% of the population is White
  • In Onslow 2.74% of the population is Black
  • In Onslow 1.83% of the population is Asian

Compare Onslow, IA Demographics

      vs

      Onslow population breakdown by race

      RaceOnslowIowaNational
      White93.15%90.90%73.35%
      Black2.74%3.32%12.63%
      Asian1.83%2.14%5.22%
      American Indian0.00%0.32%0.82%
      Native Hawaiian0.00%0.08%0.18%
      Mixed race2.28%1.97%3.06%
      Other race0.00%1.27%4.75%
      In Onslow, 4.1% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Onslow age breakdown

      Marital status

      Age of children in married couples

      Source: The Onslow, IA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).