Population density (sq mi)2,1793691
Median age34.436.237.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)62%59%55%
Families w/ Kids under 1855%45%43%
Speak English85%89%79%
Speak Spanish8%8%13%

Key findings

  • The population density in Olathe is 5953% higher than Kansas
  • The median age in Olathe is 5% lower than Kansas
  • In Olathe 85.71% of the population is White
  • In Olathe 4.99% of the population is Black
  • In Olathe 4.38% of the population is Asian

Compare Olathe, KS Demographics


      Olathe population breakdown by race

      American Indian0.32%0.82%0.82%
      Native Hawaiian0.06%0.06%0.18%
      Mixed race3.28%3.31%3.06%
      Other race1.27%2.15%4.75%
      In Olathe, 10.9% 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

      Olathe age breakdown

      Marital status

      Age of children in married couples

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