Statistic South Boulder Boulder Colorado
Population 16,230 108,777 5,758,736
Population density (sq mi) 1,801 4,130 56
Median age 38.0 28.8 36.4
Male/Female ratio 1.1:1 1.1:1 1.0:1
Married (15yrs & older) n/a 34% 56%
Families w/ Kids under 18 44% 43% 45%
Speak English n/a 85% 83%
Speak Spanish n/a 6% 12%
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Demographics Quick Facts

  • The population density in South Boulder is 56% lower than Boulder
  • The median age in South Boulder is 32% 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

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      South Boulder population breakdown by race

      Race South Boulder Boulder Colorado
      White 89.49% 86.30% 84.28%
      Black 0.83% 1.07% 4.09%
      Asian 4.57% 5.88% 2.94%
      American Indian 0.04% 0.28% 0.94%
      Native Hawaiian 0.13% 0.05% 0.14%
      Mixed race 4.12% 4.75% 3.43%
      Other race 0.83% 1.65% 4.18%
      In South Boulder, 10.3% 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 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 United States Census Bureau American Community Survey (ACS).