StatisticOak ForestIllinoisNational
Population density (sq mi)4,67822891
Median age40.437.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)59%55%55%
Families w/ Kids under 1840%44%43%
Speak English84%77%79%
Speak Spanish6%13%13%

Key findings

  • The population density in Oak Forest is 1952% higher than Illinois
  • The median age in Oak Forest is 8% higher than Illinois
  • In Oak Forest 88.68% of the population is White
  • In Oak Forest 5.22% of the population is Black
  • In Oak Forest 2.02% of the population is Asian

Compare Oak Forest, IL Demographics


      Oak Forest population breakdown by race

      RaceOak ForestIllinoisNational
      American Indian0.36%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race1.25%2.34%3.06%
      Other race2.47%5.86%4.75%
      In Oak Forest, 11.7% 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

      Oak Forest age breakdown

      Marital status

      Age of children in married couples

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