Marathon, FL demographics:
population, income, and more

Total population
9,914
0.8% year-over-year change
Median household income
$89,355/yr
10.9% year-over-year change
Housing units
6,492
0.8% year-over-year change

Marathon population

How many people live in Marathon

Marathon is home to 9,914 residents, according to the most recent Census data. Gender-wise, 52.9% of Marathon locals are male, and 47.1% are female.

Total population
9,914
0.8% year-over-year change
Gender ratio
Male
52.9%
5,246
Female
47.1%
4,668
Value Percent YoY change
Male 5,246 52.9% 3.3%
Female 4,668 47.1% -1.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Marathon is 46, with the population distributed as follows: about 18.1% are children under 15, then 7.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.2% of the population, while another 30.1% fall into the 45 to 64 bracket. Finally, around 20.8% are 65 or older.

Median age
45.6
Age breakdown
Under 15
18.1%
15 to 24
7.8%
25 to 44
23.2%
45 to 64
30.1%
Over 65
20.8%
Value Percent YoY change
Under 15 1,798 18.1% 5.3%
15 to 24 778 7.8% 0.5%
25 to 44 2,295 23.2% -2.2%
45 to 64 2,984 30.1% 0.8%
Over 65 2,059 20.8% 0.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Marathon, 75.9% of the population are US-born citizens, while 14.7% have gained naturalized citizenship. At the same time, 9.4% of residents are non-citizens. As for race, 68.4% of locals are Caucasian, 2.2% are African American and 0.5% have Asian roots. There’s also a share of 24% that includes residents with two or more races.

Citizenship
U.S.-born citizens
75.9%
Non-U.S.-born citizens
14.7%
Non-citizens
9.4%
Value Percent YoY change
U.S.-born citizens 7,529 75.9% 3.1%
Non-U.S.-born citizens 1,454 14.7% -2.0%
Non-citizens 931 9.4% -10.7%
Racial breakdown
White
68.4%
Black or African American
2.2%
American Indian and Alaska Native
0%
Asian
0.5%
Native Hawaiian and other Pacific Islander
0%
Two or more races
24%
Other
4.9%
Value Percent
White 6,776 68.4%
Black or African American 220 2.2%
Asian 54 0.5%
Two or more races 2,376 24%
Other 488 4.9%

Households in Marathon

A peek inside Marathon households

Marathon has 4,018 households, with an average of 2 members in each. Of these, 62.6% are families, while the remaining 37.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
4,018
1.3% year-over-year change
Average people per household
2
Non-family households
1,501
Family households
2,517
Value Percent YoY change
Non-family households 1,501 37.4% -6.5%
Family households 2,517 62.6% 6.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Marathon

The housing landscape of Marathon

Marathon's housing consists of 6,492 units, with 48.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 7.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 13.4% of the housing landscape.

Housing units
6,492
0.8% year-over-year change
Housing types
Value Percent
1 unit, detached 3,159 48.7%
1 unit, attached 505 7.8%
2 units 394 6.1%
3 or 4 units 238 3.7%
5 to 9 units 192 3%
10 to 19 units 452 7%
20 to 49 units 548 8.4%
50 or more units 99 1.5%
Mobile home 867 13.4%
Boat, RV, van, etc. 38 0.6%
Homes built since 2020
239
11.2% year-over-year change

The age of buildings in Marathon

In Marathon, the median construction year is 1982. About 0.7% of homes were built before the 1940s, with another 0.5% going up by 1949. Most development happened in the second half of the 20th century. Then, 7.5% of homes were added from 2000 to 2009, 13.9% between 2010 and 2019, and 3.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 45 0.7% -6.2%
Built between 1940 and 1949 32 0.5% 45.5%
Built between 1950 and 1959 511 7.9% 2.8%
Built between 1960 and 1969 359 5.5% -18.6%
Built between 1970 and 1979 2,028 31.2% -6.2%
Built between 1980 and 1989 1,375 21.2% 10.3%
Built between 1990 and 1999 515 7.9% -6.4%
Built between 2000 and 2009 488 7.5% 14.8%
Built between 2010 and 2019 900 13.9% 7.8%
Built in 2020 or later 239 3.7% 11.2%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Marathon occupancy rates

Out of the 4,018 occupied housing units in Marathon, 60.2% are owner-occupied, while 39.8% are lived in by tenants. Meanwhile, 38.1% of all homes on the local market sit vacant.

Occupied housing units
4,018
1.3% year-over-year change
Occupancy breakdown
Renter occupied
1,600
Owner occupied
2,418
Value Percent YoY
change
Renter occupied 1,600 39.8% -4.5%
Owner occupied 2,418 60.2% 5.5%
Unoccupied housing units
38.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Marathon housing costs

Housing costs in Marathon come to a median of $1,645 per month, while tenants specifically pay a median gross rent of $1,633.

Median housing costs per month
$1,645/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Marathon
$1,633/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Marathon

Marathon education at a glance

About 37.6% of the population in Marathon went to high school, while 17.4% pursued college studies. Another 9.2% earned an associate degree and 17.4% hold a bachelor’s. Meanwhile, 14.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 294 3.7% 2.1%
High school diploma 2,952 37.6% 1.3%
College diploma 1,367 17.4% -9.5%
Associate degree 727 9.2% 9.7%
Bachelor's degree 1,371 17.4% -6.2%
Graduate degree 1,151 14.6% 13.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Marathon

How much people earn in Marathon

The average annual household income in Marathon was $130,562 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +13.8% change from the previous year. At the same time, the median income stood at $89,355, reflecting a +10.9% shift over the same period.

Average household income in Marathon
$130,562/year
13.8% year-over-year change
Median household income in Marathon
$89,355/year
10.9% year-over-year change

Marathon income by age

In Marathon, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $94,838. Those with someone between 45 and 64 in charge, often well established professionally, earn $101,636 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $51,625, while those led by someone over 65, many of whom may be retired, have about $69,727 in earnings. Overall, 86.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $51,625 2.1%
25 - 44 $94,838 31.6%
45 - 64 $101,636 17.2%
Over 65 $69,727 1.1%
Above poverty level
8,414
Below poverty level
1,322
Value Percent YoY
change
Above poverty level 8,414 86.4% -1.2%
Below poverty level 1,322 13.6% 17.8%

Average renter income in Marathon

To get a better sense of what renters earn on average in Marathon, their median household income was $58,132 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 33.7%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$58,132
Rent-to-income ratio
33.7%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Marathon

Workforce and job types in Marathon

The job market in Marathon is powered by 5,038 working residents, spread across a range of industries and roles. 76.9% of the working population are employed in professional or administrative positions, while 23.1% are in hands-on or service-based jobs. Also, 27.3% run their own businesses, 53.4% are employed by private companies, and 12.2% work in the public sector.

Workforce demographics

Working population
5,038
0.8% year-over-year change
White collar
3,876
Blue collar
1,162
Value Percent YoY change
White collar 3,876 76.9% 3.6%
Blue collar 1,162 23.1% -7.5%
Employer type
Self employees
27.3%
Private companies
53.4%
Governmental workers
12.2%
Not for profit companies
7.2%
Value Percent YoY change
Self employees 1,375 27.3% 2.7%
Private companies 2,689 53.4% -1.9%
Governmental workers 614 12.2% 5.9%
Not for profit companies 360 7.2% 6.5%
Unemployment rate
4.3%
-20.4% year-over-year change

Available workforce

The unemployment rate in Marathon stands at 4.3%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Marathon

How people get around in Marathon

In Marathon, the average commute time is 14 minutes. Commuting methods vary: 72% of residents travel by personal vehicle and 9.2% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
14 min
7.0% year-over-year change
Means of transportation
Value Percent YoY change
Car 3,577 72% 0.9%
Taxicab 112 2.3% -8.9%
Motorcycle 12 0.2% 20.0%
Bicycle 65 1.3% 32.6%
Walk 457 9.2% -20.9%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Marathon by zipcode?

Zipcode Population Number of households Median income Average income
33050 10,561 4,313 $94,898 $135,446
33051 511 282 $94,231 $87,821

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FAQs about Marathon demographics 

What is the total population of Marathon?

Marathon has a total population of 9,914 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.8% compared to a year ago.

What is the gender ratio in Marathon?

The gender ratio in Marathon is as follows:
  • 52.9% males (5,246 residents)
  • 47.1% females (4,668 residents)

What is the median age in Marathon?

The median age in Marathon is 45.6.

What is the age distribution of the population in Marathon?

The age distribution in Marathon is as follows:
  • Under 15: 18.1% (1,798 residents)
  • Ages 15-24: 7.8% (778 residents)
  • Ages 25-44: 23.2% (2,295 residents)
  • Ages 45-64: 30.1% (2,984 residents)
  • Over 65: 20.8% (2,059 residents)

What is the racial and ethnic makeup of Marathon?

The racial and ethnic makeup of Marathon is as follows:
  • White: 68.4% (6,776 residents)
  • Black or African American: 2.2% (220 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.5% (54 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 24% (2,376 residents)
  • Other: 4.9% (488 residents)

What percentage of the population in Marathon are U.S.-born citizens?

U.S.-born citizens represent 75.9% of the population in Marathon.

How many housing units are there in Marathon?

There are 6,492 housing units in Marathon, reflecting a +0.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Marathon and what is the average household size?

Marathon has a total of 4,018 households, with an average of 2 people in each.

What is the median household income in Marathon?

Marathon has a median household income of $89,355, representing a +10.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Marathon?

The employment rate is 95.7% in Marathon, with a workforce of 5,038 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 76.9% (3,876 residents)
  • Blue-collar workers: 23.1% (1,162 residents)

Places of employment:
  • Self-employed: 27.3% (1,375 residents)
  • Private companies: 53.4% (2,689 residents)
  • Governmental workers: 12.2% (614 residents)
  • Not-for-profit companies: 7.2% (360 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025