Population density (sq mi)2,11222891
Median age35.237.437.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)54%55%55%
Families w/ Kids under 1854%44%43%
Speak English74%77%79%
Speak Spanish23%13%13%

Key findings

  • The population density in Belvidere is 826% higher than Illinois
  • The median age in Belvidere is 6% lower than Illinois
  • In Belvidere 82.30% of the population is White
  • In Belvidere 2.55% of the population is Black
  • In Belvidere 1.01% of the population is Asian

Compare Belvidere, IL Demographics


      Belvidere population breakdown by race

      American Indian0.05%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race3.67%2.34%3.06%
      Other race10.42%5.86%4.75%
      In Belvidere, 28.7% 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

      Belvidere age breakdown

      Marital status

      Age of children in married couples

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