StatisticChathamIllinoisNational
Population12,56912,671,821328,239,523
Population density (sq mi)1,79922891
Median age34.837.437.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)68%55%55%
Families w/ Kids under 1852%44%43%
Speak English96%77%79%
Speak Spanish2%13%13%

Key findings

  • The population density in Chatham is 689% higher than Illinois
  • The median age in Chatham is 7% lower than Illinois
  • In Chatham 95.90% of the population is White
  • In Chatham 0.57% of the population is Black
  • In Chatham 0.94% of the population is Asian

Compare Chatham, IL Demographics

      vs

      Chatham population breakdown by race

      RaceChathamIllinoisNational
      White95.90%72.14%73.35%
      Black0.57%14.30%12.63%
      Asian0.94%5.10%5.22%
      American Indian0.05%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race2.15%2.34%3.06%
      Other race0.39%5.86%4.75%
      In Chatham, 2.2% 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

      Chatham age breakdown

      Marital status

      Age of children in married couples

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