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Marathon, FL

City in Monroe County, Florida. ZIP codes: 33050.

Population

9,914

Land area

8.4sq mi

People per sq mi

1,174

ZIP codes

1

Marathon and its ZIP codes

Full map

Marathon at a glance

  • Marathon is about 2.8 times as dense as Florida as a whole.
  • The median household income is $89,355, 20% above the Florida median of $74,568.
  • A typical owner-occupied home is valued at $725,800 (about 2 times the Florida figure) and median rent is $1,633 a month.

Local data for Marathon, FL

Counts from official public data

Housing and community stats

Marathon, FL, American Community Survey 2020-2024

Full profile

Median household income

$89,355

Poverty rate

13.4%

Median home value

$725,800

Median rent

$1,633/mo

Homeownership

60.2%

Bachelor's or higher

33.1%

Median age

45.6

Average commute

13.7 min

Largest reported origins and ancestries: Cuban Americans (2,259), German Americans (1,450), Irish Americans (911).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Monroe County. PPP loans are for Marathon.

Details

Unemployment rate

3.3%

Aug 2026, +0.3 pts in a year

Average annual pay

$62,166

47,299 jobs, 2025

Income per person

$147,760

BEA, 2024

Federal spending

$614M

FY 2026, $7,413 per person

PPP loans

$36.3M

909 loans, 4,882 jobs reported

Monroe County economyFederal spendingPPP loans

How people get to work

Marathon, FL, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone63.4%
  • Carpooled8.6%
  • Public transit0.0%
  • Walked9.2%
  • Bicycle1.3%
  • Taxi, ride-hailing, motorcycle or other3.7%
  • Worked from home13.7%

Average one-way commute: 13.7 minutes for people who do not work from home.

Environment and hazard risk

Marathon, FL, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: coastal flooding

Storm events since 1996

730

Countywide, mostly waterspout

Flood insurance policies

22,181

58.3% of homes, county

July high / Jan low

90° / 62°F

46.0 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Marathon, FL, CDC PLACES estimates

All 40 measures

Obesity

26.4%

U.S. 33.3% -6.9 pts

Diabetes

13.3%

U.S. 12.1% +1.2 pts

Smoking

12.9%

U.S. 12.8% about the same

Uninsured (18-64)

15.3%

U.S. 11.1% +4.2 pts

ZIP codes in Marathon

1 in or overlapping Marathon. Population shown

·

Cities near Marathon

NameDistanceLand area (sq mi)
Key Colony BeachCity1.2 mi0.4
Duck KeyCensus-designated place6.5 mi0.6
LaytonCity14 mi0.2
Big Pine KeyCensus-designated place23 mi10.2

Frequently asked questions

What county is Marathon, FL in?
Marathon is in Monroe County, Florida.
What ZIP codes are in Marathon, FL?
ZIP codes in or overlapping Marathon include 33050.
What is the population of Marathon, FL?
About 9,914 people live in Marathon, based on American Community Survey 5-year estimates.
What cities are near Marathon?
Nearby places include Key Colony Beach (1.2 mi), Duck Key (6.5 mi), Layton (14 mi), Big Pine Key (23 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023