Joliet demographics profile

StatisticJolietIllinoisNational
Population147,51512,851,684318,558,162
Population density (sq mi)2,31322291
Median age33.437.437.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)53%55%55%
Speak English74%77%79%
Speak Spanish22%13%13%
Joliet, IL has a population of 147,515 and is the 177th largest city in the United States. The population density is 2,313 per sq mi which is 941% higher than the Illinois average and 2453% higher than the national average. The median age in Joliet is 33 which is approximately 11% lower than the Illinois average of 37. In Joliet, 53% of the population over 15 years of age are married, 74% speak English and 22% speak Spanish. 73% of Joliet residents were born in Illinois, 12% were born out of state, 1% were born outside of the United States and 14% were foreign born.

Did you know?

  • The population density in Joliet is 941% higher than Illinois.
  • The median age in Joliet is 11% lower than Illinois.
  • In Joliet 66.42% of the population is Caucasian.
  • In Joliet 16.33% of the population is African American.
  • In Joliet 2.29% of the population is Asian.

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Compare Joliet, IL Demographics To Other Cities

Joliet population breakdown by race

RaceJolietIllinoisNational
Caucasian66.42%72.14%73.35%
African American16.33%14.30%12.63%
Asian2.29%5.10%5.22%
American Indian0.39%0.23%0.82%
Native Hawaiian0.01%0.03%0.18%
Mixed race2.70%2.34%3.06%
Other race11.86%5.86%4.75%
In Joliet, 28.4% 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

Joliet age breakdown

Marital status

Age of children in married couples

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