Population density (sq mi)96322891
Median age44.137.437.7
Male/Female ratio0.8:11.0:11.0:1
Married (15yrs & older)58%55%55%
Families w/ Kids under 1844%44%43%
Speak English97%77%79%
Speak Spanish2%13%13%

Key findings

  • The population density in Princeton is 322% higher than Illinois
  • The median age in Princeton is 18% higher than Illinois
  • In Princeton 96.55% of the population is White
  • In Princeton 0.32% of the population is Black
  • In Princeton 0.72% of the population is Asian

Compare Princeton, IL Demographics


      Princeton population breakdown by race

      American Indian0.21%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race1.24%2.34%3.06%
      Other race0.96%5.86%4.75%
      In Princeton, 6.7% 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

      Princeton age breakdown

      Marital status

      Age of children in married couples

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