Population density (sq mi)1,15622891
Median age42.237.437.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)72%55%55%
Families w/ Kids under 1842%44%43%
Speak English100%77%79%
Speak Spanish0%13%13%

Key findings

  • The population density in Gridley is 407% higher than Illinois
  • The median age in Gridley is 13% higher than Illinois
  • In Gridley 96.35% of the population is White
  • In Gridley 1.19% of the population is Black
  • In Gridley 0.21% of the population is Asian

Compare Gridley, IL Demographics


      Gridley population breakdown by race

      American Indian0.70%0.23%0.82%
      Native Hawaiian0.00%0.03%0.18%
      Mixed race1.54%2.34%3.06%
      Other race0.00%5.86%4.75%
      In Gridley, 1.8% 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

      Gridley age breakdown

      Marital status

      Age of children in married couples

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