Marathon demographics profile

Population density (sq mi)1,03129491
Median age41.741.637.7
Male/Female ratio1.2:11.0:11.0:1
Married (15yrs & older)46%54%55%
Families w/ Kids under 1831%38%43%
Speak English66%72%79%
Speak Spanish30%21%13%
Marathon, FL has a population of 8,701 and is the 4,383rd largest city in the United States. The population density is 1,031 per sq mi which is 251% higher than the Florida average and 1038% higher than the national average. The median age in Marathon is 42 which is approximately equal to the Florida average of 42. In Marathon, 46% of the population over 15 years of age are married, 66% speak English and 30% speak Spanish. 27% of Marathon residents were born in Florida, 45% were born out of state, 1% were born outside of the United States and 27% were foreign born.
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Did you know?

  • The population density in Marathon is 251% higher than Florida.
  • The median age in Marathon is equal to Florida.
  • In Marathon 90.13% of the population is White.
  • In Marathon 5.51% of the population is Black or African American.
  • In Marathon 1.60% of the population is Asian.

Compare Marathon, FL Demographics To Other Cities

Marathon population breakdown by race

Black or African American5.51%16.14%12.63%
American Indian0.00%0.27%0.82%
Native Hawaiian0.00%0.06%0.18%
Mixed race1.47%2.48%3.06%
Other race1.30%2.54%4.75%
In Marathon, 35.5% 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.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Marathon age breakdown

Marital status

Age of children in married couples

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