Chatham demographics profile

Population density (sq mi)1,79922291
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%
Chatham, IL has a population of 12,569 and is the 3,296th largest city in the United States. The population density is 1,799 per sq mi which is 709% higher than the Illinois average and 1886% higher than the national average. The median age in Chatham is 35 which is approximately 7% lower than the Illinois average of 37. In Chatham, 68% of the population over 15 years of age are married, 96% speak English and 2% speak Spanish. 79% of Chatham residents were born in Illinois, 18% were born out of state, 0% were born outside of the United States and 3% were foreign born.

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Did you know?

  • The population density in Chatham is 709% 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 or African American.
  • In Chatham 0.94% of the population is Asian.

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Chatham population breakdown by race

Black or African American0.57%14.30%12.63%
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.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

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).