Statistic South River City Austin Texas
Population 6,736 988,400 30,040,435
Population density (sq mi) 6,027 3,081 115
Median age 35.4 33.7 34.2
Male/Female ratio 1.1:1 1.0:1 1.0:1
Married (15yrs & older) n/a 45% 56%
Families w/ Kids under 18 37% 47% 48%
Speak English n/a 70% 65%
Speak Spanish n/a 22% 30%
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Demographics Quick Facts

  • The population density in South River City is 96% higher than Austin
  • The median age in South River City is 5% higher than Austin
  • In South River City 85.57% of the population is White
  • In South River City 2.65% of the population is Black
  • In South River City 2.89% of the population is Asian

Compare Austin, TX Demographics

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      South River City racial demographics

      Race South River City Austin Texas
      White 85.57% 69.39% 74.84%
      Black 2.65% 7.79% 11.95%
      Asian 2.89% 7.71% 4.36%
      American Indian 1.63% 0.72% 0.48%
      Native Hawaiian 0.00% 0.07% 0.08%
      Mixed race 4.78% 6.50% 2.50%
      Other race 2.47% 7.82% 5.79%
      In South River City, 33.3% 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

      South River City age breakdown

      Marital status

      Age of children in married couples

      Source: The South River City, Austin, TX demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS) and include 2026 modeled data developed using proprietary methodologies.