StatisticSouth BoulderBoulderColorado
Population density (sq mi)1,8014,01256
Median age38.028.736.4
Male/Female ratio1.1:11.1:11.0:1
Married (15yrs & older)n/a36%56%
Families w/ Kids under 1844%44%45%
Speak Englishn/a85%83%
Speak Spanishn/a7%12%

Key findings

  • The population density in South Boulder is 55% lower than Boulder
  • The median age in South Boulder is 33% higher than Boulder
  • In South Boulder 89.49% of the population is White
  • In South Boulder 0.83% of the population is Black
  • In South Boulder 4.57% of the population is Asian

Compare Boulder, CO Demographics


      South Boulder population breakdown by race

      RaceSouth BoulderBoulderColorado
      American Indian0.04%0.29%0.94%
      Native Hawaiian0.13%0.09%0.14%
      Mixed race4.12%3.16%3.43%
      Other race0.83%1.96%4.18%
      In South Boulder, 9.2% 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 Boulder age breakdown

      Marital status

      Age of children in married couples

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