Population density (sq mi)4,3872,830113
Median age36.932.434.2
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)n/a44%56%
Families w/ Kids under 1848%49%48%
Speak Englishn/a68%65%
Speak Spanishn/a24%30%

Key findings

  • The population density in Zilker is 55% higher than Austin
  • The median age in Zilker is 14% higher than Austin
  • In Zilker 92.08% of the population is White
  • In Zilker 0.85% of the population is Black
  • In Zilker 4.30% of the population is Asian

Compare Austin, TX Demographics


      Zilker population breakdown by race

      American Indian0.27%0.43%0.48%
      Native Hawaiian0.09%0.08%0.08%
      Mixed race2.06%3.16%2.50%
      Other race0.36%6.08%5.79%
      In Zilker, 34.5% 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

      Zilker age breakdown

      Marital status

      Age of children in married couples

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