StatisticSan MarcoJacksonvilleFlorida
Population density (sq mi)9791,146410
Median age39.535.741.6
Male/Female ratio0.8:10.9:11.0:1
Married (15yrs & older)n/a50%54%
Families w/ Kids under 1847%42%38%
Speak Englishn/a86%72%
Speak Spanishn/a6%21%

Key findings

  • The population density in San Marco is 15% lower than Jacksonville
  • The median age in San Marco is 11% higher than Jacksonville
  • In San Marco 67.20% of the population is White
  • In San Marco 15.01% of the population is Black
  • In San Marco 11.24% of the population is Asian

Compare Jacksonville, FL Demographics


      San Marco population breakdown by race

      RaceSan MarcoJacksonvilleFlorida
      American Indian0.33%0.23%0.27%
      Native Hawaiian0.00%0.12%0.06%
      Mixed race5.75%3.52%2.48%
      Other race0.48%1.22%2.54%
      In San Marco, 8.8% 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

      San Marco age breakdown

      Marital status

      Age of children in married couples

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