Population density (sq mi)2,70525691
Median age34.436.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)55%52%55%
Families w/ Kids under 1847%46%43%
Speak English64%56%79%
Speak Spanish21%29%13%

Key findings

  • The population density in Fairfield is 957% higher than California
  • The median age in Fairfield is 4% lower than California
  • In Fairfield 46.82% of the population is White
  • In Fairfield 14.30% of the population is Black
  • In Fairfield 16.59% of the population is Asian

Compare Fairfield, CA Demographics


      Fairfield population breakdown by race

      American Indian0.54%0.74%0.82%
      Native Hawaiian1.21%0.39%0.18%
      Mixed race7.28%4.62%3.06%
      Other race13.26%13.28%4.75%
      In Fairfield, 30.1% 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

      Fairfield age breakdown

      Marital status

      Age of children in married couples

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