Marathon, FL
Demographics And Statistics

Demographics | Cost Of Living
Updated: 2025-10-25

Living In Marathon, Florida Summary

Life in Marathon research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Marathon over the past nine years using Census, FBI, Zillow, and other primary data sources. Based on the most recently available data, we found the following about life in Marathon:

  • The population in Marathon is 9,831.

  • The median home value in Marathon is $821,377.

  • The median income in Marathon is $80,556.

  • The cost of living in Marathon is 145 which is 1.4x higher than the national average.

  • The median rent in Marathon is $1,592.

  • The unemployment rate in Marathon is 5.4%.

  • The poverty rate in Marathon is 11.4%.

  • The average high in Marathon is 82.7° and the average low is 72.7°.

Marathon SnackAbility

7.5
Overall SnackAbility
Jobs
6/10
Housing
9
Affordability
3
Diversity
9
Safety
N/A
Amenities
8
Education
8
Commute
10

Marathon, FL Cost Of Living

Cost of living in Marathon summary. We use data on the cost of living to determine how expensive it is to live in Marathon. Real estate prices drive most of the variance in cost of living around Florida. Key points include:

  • The cost of living in Marathon is 145 with 100 being average.

  • The cost of living in Marathon is 1.4x higher than the national average.

  • The median home value in Marathon is $821,377.

  • The median income in Marathon is $80,556.

145
Marathon's Overall Cost Of Living
1.4x
Higher Than The National Average

Cost Of Living In Marathon Comparison Table

Living Expense Marathon Florida National Average
Overall 145 97 100
Services 105 96 100
Groceries 103 99 100
Health 97 98 100
Housing 236 96 100
Transportation 102 97 100
Utilities 103 95 100

Marathon, FL Weather

  • The average high in Marathon is 82.7° and the average low is 72.7°.

  • There are 53.2 days of precipitation each year.

  • Expect an average of 42.3 inches of precipitation each year with 0.0 inches of snow.

StatMarathon
Average Annual High82.7
Average Annual Low72.7
Annual Precipitation Days53.2
Average Annual Precipitation42.3
Average Annual Snowfall0.0
82.7°
Average High
53.2
Days of Rain

Marathon, FL Photos

Beach Resort
Source: Wikipedia User Edgar Serrano | CC BY-SA 3.0

Rankings for Marathon in Florida

Locations Around Marathon

Map Of Marathon, FL

Best Places Around Marathon

1

Key West, FL
Population 25,824

2

Key Largo, FL
Population 12,069

Marathon Demographics And Statistics

Population over time in Marathon

The current population in Marathon is 9,831. The population has increased 15.7% from 2010.

Year Population % Change
2023 9,831 0.4%
2022 9,789 1.7%
2021 9,622 10.0%
2020 8,746 0.5%
2019 8,702 -0.4%
2018 8,737 -0.1%
2017 8,748 0.5%
2016 8,701 1.6%
2015 8,563 0.4%
2014 8,529 1.5%
2013 8,405 0.2%
2012 8,389 -0.3%
2011 8,415 -1.0%
2010 8,498 -

Race / Ethnicity in Marathon

White
59.3% (5,831)
African American
3.9% (385)
American Indian
0.0% (0)
Asian
0.4% (38)
Hawaiian
0.0% (0)
Other
0.1% (13)
Two Or More
3.2% (310)
Hispanic
33.1% (3,254)

Marathon is:

  • 59.3% White with 5,831 White residents.

  • 3.9% African American with 385 African American residents.

  • 0.0% American Indian with 0 American Indian residents.

  • 0.4% Asian with 38 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.1% Other with 13 Other residents.

  • 3.2% Two Or More with 310 Two Or More residents.

  • 33.1% Hispanic with 3,254 Hispanic residents.

Race Marathon FL USA
White 59.3% 51.4% 58.2%
African American 3.9% 14.8% 12.0%
American Indian 0.0% 0.1% 0.5%
Asian 0.4% 2.8% 5.7%
Hawaiian 0.0% 0.1% 0.2%
Other 0.1% 0.6% 0.5%
Two Or More 3.2% 3.5% 3.9%
Hispanic 33.1% 26.7% 19.0%

Gender in Marathon

Female
48.3% (4,750)
Male
51.7% (5,080)
  • Marathon is 48.3% female with 4,750 female residents.

  • Marathon is 51.7% male with 5,080 male residents.

Gender Marathon FL USA
Female 48.3% 50.9% 50.5%
Male 51.7% 49.1% 49.5%

Highest level of educational attainment in Marathon for adults over 25

  • 4.0% of adults in Marathon completed < 9th grade.

  • 6.0% of adults in Marathon completed 9-12th grade.

  • 30.0% of adults in Marathon completed high school / ged.

  • 20.0% of adults in Marathon completed some college.

  • 8.0% of adults in Marathon completed associate's degree.

  • 19.0% of adults in Marathon completed bachelor's degree.

  • 8.0% of adults in Marathon completed master's degree.

  • 4.0% of adults in Marathon completed professional degree.

  • 1.0% of adults in Marathon completed doctorate degree.

< 9th Grade
4.0% (393)
9-12th Grade
6.0% (589)
High School / GED
30.0% (2,949)
Some College
20.0% (1,966)
Associate's Degree
8.0% (786)
Bachelor's Degree
19.0% (1,867)
Master's Degree
8.0% (786)
Professional Degree
4.0% (393)
Doctorate Degree
1.0% (98)
Education Marathon FL USA
< 9th Grade 4.0% 5.0% 5.0%
9-12th Grade 6.0% 6.0% 6.0%
High School / GED 30.0% 27.0% 26.0%
Some College 20.0% 19.0% 19.0%
Associate's Degree 8.0% 10.0% 9.0%
Bachelor's Degree 19.0% 21.0% 21.0%
Master's Degree 8.0% 9.0% 10.0%
Professional Degree 4.0% 2.0% 2.0%
Doctorate Degree 1.0% 1.0% 2.0%

Household Income For Marathon, Florida

  • 3.8% of households in Marathon earn Less than $10,000.

  • 2.0% of households in Marathon earn $10,000 to $14,999.

  • 7.0% of households in Marathon earn $15,000 to $24,999.

  • 7.8% of households in Marathon earn $25,000 to $34,999.

  • 9.7% of households in Marathon earn $35,000 to $49,999.

  • 17.1% of households in Marathon earn $50,000 to $74,999.

  • 11.7% of households in Marathon earn $75,000 to $99,999.

  • 16.1% of households in Marathon earn $100,000 to $149,999.

  • 10.2% of households in Marathon earn $150,000 to $199,999.

  • 14.5% of households in Marathon earn $200,000 or more.

Less than $10,000
3.8% (37,659)
$10,000 to $14,999
2.0% (20,068)
$15,000 to $24,999
7.0% (69,124)
$25,000 to $34,999
7.8% (77,052)
$35,000 to $49,999
9.7% (95,634)
$50,000 to $74,999
17.1% (167,731)
$75,000 to $99,999
11.7% (114,711)
$100,000 to $149,999
16.1% (158,316)
$150,000 to $199,999
10.2% (99,846)
$200,000 or more
14.5% (142,955)
Income Marathon FL USA
Less than $10,000 3.8% 5.1% 4.9%
$10,000 to $14,999 2.0% 3.4% 3.6%
$15,000 to $24,999 7.0% 7.0% 6.6%
$25,000 to $34,999 7.8% 7.7% 6.8%
$35,000 to $49,999 9.7% 11.6% 10.4%
$50,000 to $74,999 17.1% 17.3% 15.7%
$75,000 to $99,999 11.7% 13.1% 12.7%
$100,000 to $149,999 16.1% 16.8% 17.4%
$150,000 to $199,999 10.2% 8.0% 9.3%
$200,000 or more 14.5% 10.1% 12.6%

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