Marathon, WI demographics:
population, income, and more

Total population
4,280
0.9% year-over-year change
Median household income
$94,432/yr
-0.1% year-over-year change
Housing units
1,805
1.6% year-over-year change

Marathon population

How many people live in Marathon

Marathon is home to 4,280 residents, according to the most recent Census data. Gender-wise, 52.3% of Marathon locals are male, and 47.7% are female.

Total population
4,280
0.9% year-over-year change
Gender ratio
Male
52.3%
2,239
Female
47.7%
2,041
Value Percent YoY change
Male 2,239 52.3% 3.6%
Female 2,041 47.7% -1.9%
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% are children under 15, then 10.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 19.4% of the population, while another 31% fall into the 45 to 64 bracket. Finally, around 20.6% are 65 or older.

Median age
46.4
Age breakdown
Under 15
18%
15 to 24
10.9%
25 to 44
19.4%
45 to 64
31%
Over 65
20.6%
Value Percent YoY change
Under 15 771 18% 6.3%
15 to 24 468 10.9% -10.7%
25 to 44 831 19.4% 2.1%
45 to 64 1,327 31% 0.1%
Over 65 883 20.6% 3.4%
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, 98.8% of the population are US-born citizens, while 1% have gained naturalized citizenship. At the same time, 0.2% of residents are non-citizens. There’s also a share of 2.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.8%
Non-U.S.-born citizens
1%
Non-citizens
0.2%
Value Percent YoY change
U.S.-born citizens 4,230 98.8% 0.7%
Non-U.S.-born citizens 42 1% 20.0%
Non-citizens 8 0.2% 0.0%
Racial breakdown
White
93.4%
Black or African American
0%
American Indian and Alaska Native
0.1%
Asian
2.7%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2.5%
Other
1.2%
Value Percent
White 3,999 93.4%
Black or African American 2 0%
American Indian and Alaska Native 4 0.1%
Asian 117 2.7%
Native Hawaiian and other Pacific Islander 2 0%
Two or more races 106 2.5%
Other 50 1.2%

Households in Marathon

A peek inside Marathon households

Marathon has 1,750 households, with an average of 2 members in each. Of these, 73.3% are families, while the remaining 26.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,750
2.8% year-over-year change
Average people per household
2
Non-family households
468
Family households
1,282
Value Percent YoY change
Non-family households 468 26.7% 10.9%
Family households 1,282 73.3% 0.2%
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 1,805 units, with 91.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.2% 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 2.3% of the housing landscape.

Housing units
1,805
1.6% year-over-year change
Housing types
Value Percent
1 unit, detached 1,652 91.5%
1 unit, attached 22 1.2%
2 units 9 0.5%
3 or 4 units 23 1.3%
5 to 9 units 7 0.4%
10 to 19 units 47 2.6%
20 to 49 units 4 0.2%
Mobile home 41 2.3%
Homes built since 2020
5
66.7% year-over-year change

The age of buildings in Marathon

In Marathon, the median construction year is 1978. About 20.8% of homes were built before the 1940s, with another 3.3% going up by 1949. Most development happened in the second half of the 20th century. Then, 18.2% of homes were added from 2000 to 2009, 5% between 2010 and 2019, and 0.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 376 20.8% -12.3%
Built between 1940 and 1949 59 3.3% 22.9%
Built between 1950 and 1959 128 7.1% 7.6%
Built between 1960 and 1969 120 6.6% 14.3%
Built between 1970 and 1979 278 15.4% 13.5%
Built between 1980 and 1989 176 9.8% 4.8%
Built between 1990 and 1999 244 13.5% -5.4%
Built between 2000 and 2009 329 18.2% -3.2%
Built between 2010 and 2019 90 5% 47.5%
Built in 2020 or later 5 0.3% 66.7%
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 1,750 occupied housing units in Marathon, 87.6% are owner-occupied, while 12.4% are lived in by tenants. Meanwhile, 3% of all homes on the local market sit vacant.

Occupied housing units
1,750
2.8% year-over-year change
Occupancy breakdown
Renter occupied
217
Owner occupied
1,533
Value Percent YoY
change
Renter occupied 217 12.4% 4.3%
Owner occupied 1,533 87.6% 2.6%
Unoccupied housing units
3.0%
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 $1,020 per month, while tenants specifically pay a median gross rent of $860.

Median housing costs per month
$1,020/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
$860/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 42.4% of the population in Marathon went to high school, while 16.5% pursued college studies. Another 14.2% earned an associate degree and 18.6% hold a bachelor’s. Meanwhile, 6.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 59 1.8% -11.9%
High school diploma 1,398 42.4% 5.4%
College diploma 543 16.5% -4.2%
Associate degree 469 14.2% -0.4%
Bachelor's degree 613 18.6% -2.2%
Graduate degree 216 6.6% 0.9%
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 $113,895 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.3% change from the previous year. At the same time, the median income stood at $94,432, reflecting a -0.1% shift over the same period.

Average household income in Marathon
$113,895/year
4.3% year-over-year change
Median household income in Marathon
$94,432/year
-0.1% 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 $121,071. Those with someone between 45 and 64 in charge, often well established professionally, earn $113,958 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $108,750, while those led by someone over 65, many of whom may be retired, have about $64,242 in earnings. Overall, 97.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $108,750 2.4%
25 - 44 $121,071 0.0%
45 - 64 $113,958 3.8%
Over 65 $64,242 3.3%
Above poverty level
4,125
Below poverty level
122
Value Percent YoY
change
Above poverty level 4,125 97.1% 0.1%
Below poverty level 122 2.9% 7.0%

Employment in Marathon

Workforce and job types in Marathon

68.7% of the working population are employed in professional or administrative positions, while 31.3% are in hands-on or service-based jobs. Also, 10.9% run their own businesses, 72% are employed by private companies, and 9.2% work in the public sector.

Workforce demographics

White collar
1,565
Blue collar
713
Value Percent YoY change
White collar 1,565 68.7% -1.6%
Blue collar 713 31.3% -2.5%
Employer type
Self employees
10.9%
Private companies
72%
Governmental workers
9.2%
Not for profit companies
7.9%
Value Percent YoY change
Self employees 249 10.9% 7.8%
Private companies 1,640 72% -4.3%
Governmental workers 209 9.2% 5.6%
Not for profit companies 180 7.9% 0.6%

Transportation in Marathon

How people get around in Marathon

In Marathon, the average commute time is 20 minutes. Commuting methods vary: 97% of residents travel by personal vehicle and 2.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
20 min
5.3% year-over-year change
Means of transportation
Value Percent YoY change
Car 1,927 97% -3.0%
Bicycle 2 0.1% 0.0%
Walk 58 2.9% -29.3%
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
54448 4,280 1,750 $94,432 $113,895

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FAQs about Marathon demographics 

What is the total population of Marathon?

Marathon has a total population of 4,280 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 +0.9% compared to a year ago.

What is the gender ratio in Marathon?

The gender ratio in Marathon is as follows:
  • 52.3% males (2,239 residents)
  • 47.7% females (2,041 residents)

What is the median age in Marathon?

The median age in Marathon is 46.4.

What is the age distribution of the population in Marathon?

The age distribution in Marathon is as follows:
  • Under 15: 18% (771 residents)
  • Ages 15-24: 10.9% (468 residents)
  • Ages 25-44: 19.4% (831 residents)
  • Ages 45-64: 31% (1,327 residents)
  • Over 65: 20.6% (883 residents)

What is the racial and ethnic makeup of Marathon?

The racial and ethnic makeup of Marathon is as follows:
  • White: 93.4% (3,999 residents)
  • Black or African American: 0% (2 residents)
  • American Indian and Alaska Native: 0.1% (4 residents)
  • Asian: 2.7% (117 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (2 residents)
  • Two or More Races: 2.5% (106 residents)
  • Other: 1.2% (50 residents)

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

U.S.-born citizens represent 98.8% of the population in Marathon.

How many housing units are there in Marathon?

There are 1,805 housing units in Marathon, reflecting a +1.6% 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 1,750 households, with an average of 2 people in each.

What is the median household income in Marathon?

Marathon has a median household income of $94,432, representing a -0.1% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Marathon?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 68.7% (1,565 residents)
  • Blue-collar workers: 31.3% (713 residents)

Places of employment:
  • Self-employed: 10.9% (249 residents)
  • Private companies: 72% (1,640 residents)
  • Governmental workers: 9.2% (209 residents)
  • Not-for-profit companies: 7.9% (180 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