States · Florida · Monroe County

Marathon, Florida.

Typical home $832,447 (+1.8% in a year), asking rent $5,766 . Key West, FL metro.

What it costs per month · Marathon $4,369/mo

to buy the typical home at today's mortgage rate — +$2,451 (+128%) since Jan 2020.

What the home itself did
1 year
Up $14,816 +2%
$817,631$832,447 since Sep 2025
5 years
Up $170,747 +26%
$661,700$832,447 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 $4,000 $5,000 2002 2006 2010 2014 2018 2022 2026 Marathon $4,369 Florida $1,970 United States $1,922
$1,000 $2,000 $3,000 $4,000 $5,000 2002 2010 2018 2026
  • Marathon$4,369
  • Florida$1,970
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 15 years.

Typical home values in Marathon, FL rose 1.8% over the past year — faster than the nation's +1.2%.

Living in Marathon, Monroe County, Florida

Marathon is a city of 9,689 people in Monroe County. Half its households earn more than $89,355 a year and half less, against $87,738 across Monroe County; 13% of its people live below the poverty line. 60% of its homes are lived in by their owners and 40% are rented. Unemployment in Monroe County was 3.3% in August 2026, and the county had 0.5% more jobs in 2025 than the year before. The most residents work in restaurants and hotels, then schools and health care.

People 9,689 in the 2020 census; median age 45.6
Household income $89,355 the median, give or take $14,353 · Monroe County: $87,738
Unemployment 3.3% Monroe County, August 2026; 3.0% a year before
Homes 60% lived in by their owners; 40% rented

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Marathon is a small city in the Florida Keys, in Monroe County. Its residents are older than in most of the country, and household incomes are a little above the county's. Most homes are lived in by their owners, though typical home values and rents run very high. Winters are mild, with January the coolest month and still warm by most standards, while summers are hot, and the year brings a fair amount of rain.

Work. Many residents work in restaurants, hotels and entertainment, in schools, hospitals and social care, or in shops. Among the largest workplaces in Marathon are Publix Super Markets, Fishermens Hospital and Shaner Operating, which runs hotels. Commutes are short, and a good number of people work from home.

Things to do. Curry Hammock State Park, a protected natural area, is in or beside town. A short drive away is the Dolphin Research Center, a zoo-style attraction centered on dolphins. A longer drive takes you to Anne's Beach, a beach on the Keys.

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  • 4,018households
  • 33%of adults have a degree
  • 13%below the poverty line
  • 14 mintypical commute
  • 14%work from home

What residents work in

  • Restaurants, hotels and entertainment16%
  • Schools, hospitals and social care15%
  • Professional and business services14%
  • Shops (retail)12%
  • Building trades12%
  • Transport, warehouses and utilities6%

Employed residents by industry, from the Census survey. Monroe County had 47,299 jobs in 2025, 0.5% more than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 76° and 64°; warmest in August, 92° and 80° 60° 70° 80° 90° 100° J 76° 64° F M A M J J A 92° 80° S O N D
Average daily high and low for each month: coldest in January, 76° and 64°; warmest in August, 92° and 80° 60° 70° 80° 90° 100° J 76° 64° F M A M J J A 92° 80° S O N D

Coldest in January, with highs near 76° and lows near 64°; warmest in August, with highs near 92° and lows near 80°. About 40 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Marathon Airport weather station, 2 miles away (NOAA).

Largest employers in Marathon

  1. Monroe County193
  2. Fishermen's Community Hospital180
  3. Monroe County School Board151
  4. Home Depot USA150
  5. City of Marathon143
  6. Winn Dixie93
  7. Publix Supermarkets93
  8. Walgreens Co.88

From the City of Marathon’s annual financial report for 2025, its schedule of principal employers, as Florida’s Auditor General publishes it: the report. Employees as the report counts them.

Natural hazards

  1. HurricanesVery high
  2. Coastal floodingRelatively high
  3. LightningRelatively high

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Marathon’s census tracts, against the rest of the country; all of them together, relatively moderate. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Monroe County and the Key West, FL metro.

Marathon home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$200,000 $400,000 $600,000 $800,000 2018 2020 2022 2024 2026 Marathon $832,447 Florida $375,361 United States $366,157
$200,000 $400,000 $600,000 $800,000 2018 2022 2026
  • Marathon$832,447
  • Florida$375,361
  • United States$366,157

Sellers are cutting prices on about 1 in 6 Marathon listings, and the typical home goes pending in 123 days — the market is roughly in balance.

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Share of listings with a price cut

The early-warning dial: sellers cut when buyers stop reaching. Rising cuts cool a market months before prices notice.

10% 15% 20% 25% 2018 2019 2020 2021 2022 2023 2024 2025 2026 Marathon 17.97% United States 26.90%
10% 15% 20% 25% 2018 2022 2026
  • Marathon17.97%
  • United States26.90%

Days to pending

How long the typical listing takes to go under contract.

25 50 75 100 125 2026 Marathon 123 United States 21
25 50 75 100 125 2026
  • Marathon123
  • United States21

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

100 200 300 2018 2019 2020 2021 2022 2023 2024 2025 2026 Marathon 251
100 200 300 2018 2022 2026
  • Marathon251

New listings per month

Sellers arriving at the market.

20 40 60 2018 2019 2020 2021 2022 2023 2024 2025 2026 Marathon 32
20 40 60 2018 2022 2026
  • Marathon32

Median sale price

What buyers actually paid — closed sales, not asking prices.

$400,000 $600,000 $800,000 2026 Marathon $888,306 United States $371,407
$400,000 $600,000 $800,000 2026
  • Marathon$888,306
  • United States$371,407

Zip codes with a Marathon address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Marathon — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Marathon