Marathon, Florida

Marathon, Florida
City of Marathon
Welcome to Marathon
Location in Monroe County and the U.S. state of Florida
Marathon
Location in the United States
Coordinates: 24°44′20″N 81°00′12″W / 24.73889°N 81.00333°W / 24.73889; -81.00333
CountryUnited States
StateFlorida
CountyMonroe
Incorporated1999
Government
 • TypeCouncil-Manager
Area
 • Total
9.28 sq mi (24.03 km2)
 • Land8.45 sq mi (21.88 km2)
 • Water0.83 sq mi (2.15 km2)
Elevation
0 ft (0 m)
Population
 (2020)
 • Total
9,689
 • Density1,147.1/sq mi (442.91/km2)
Time zoneUTC−05:00 (EST)
 • Summer (DST)UTC−04:00 (EDT)
ZIP Codes
33050−33052
Area code305
FIPS code12-43000
GNIS feature ID2405014
Websitewww.ci.marathon.fl.us

Marathon is a city in the middle of the Florida Keys, in Monroe County, Florida, United States. As of the 2020 census, the city had a population of 9,689, up from 8,297 in 2010.