Marathon, Ohio Demographics & Population 2026
During the 2020–2024 ACS period, Marathon, Ohio had a total population of 146, the 1171st largest community in Ohio. The poverty rate is 11.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 0.0% of adults have a bachelor's degree, well below the national average of 35.7%.
Marathon Quick Facts
How Marathon Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 150 | 146 | -2.7% |
How Marathon Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Marathon Rankings in Ohio
Explore Ohio Rankings
Other Cities in Clermont County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Amelia | 12,871 | $70,938 | 13.0% | $230,400 |
| Withamsville | 7,429 | $72,300 | 13.7% | $229,400 |
| Mount Carmel | 4,890 | $70,000 | 13.7% | $226,100 |
| Summerside | 4,662 | $71,241 | 17.1% | $210,200 |
| Mulberry | 3,821 | $75,969 | 6.6% | $219,600 |
| Mount Repose | 3,798 | $102,031 | 2.8% | $253,500 |
| Batavia | 2,794 | $60,984 | 18.9% | $205,800 |
| New Richmond | 2,766 | $80,536 | 11.5% | $235,900 |
| Bethel | 2,658 | $43,779 | 27.5% | $158,500 |
| Williamsburg | 2,608 | $62,500 | 14.6% | $196,900 |
Cities Similar to Marathon
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Moscow | 147 | $48,125 | $74,500 | 9.0% | 34.0% |
| Stone Creek | 145 | $53,571 | $108,300 | 11.4% | 4.8% |
| Gomer | 148 | $70,000 | $165,400 | 24.0% | 10.1% |
| West Elkton | 148 | $50,833 | $89,000 | 4.7% | 26.4% |
| Tippecanoe | 144 | N/A | N/A | 0.0% | 0.0% |
A note before these figures: with a population of 146, Marathon's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Marathon is a small community located in Ohio, within Clermont County. The total population is 146. It ranks as the 1171st most populous out of 1,264 Census-designated places in Ohio.
Age Demographics
The median age in Marathon is 44.9 years. This is 13% higher than the state median of 39.7 years. Only 9.6% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The poverty rate stands at 11.0%. This is 18% lower than the state poverty rate of 13.3%. The survey records no unemployed residents in Marathon, which reflects the size of the sample rather than a labor market without joblessness. 22.1% of occupied housing units are owner-occupied. This homeownership rate is 67% lower than the state average of 67.2%.
Race & Ethnicity
Every resident counted in Marathon was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 11.4%.
Data Sources & Methodology
All demographic data for Marathon, Ohio is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Ohio state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,264 Census-designated places in Ohio. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Marathon, Ohio?
Marathon, Ohio has a population of 146 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Marathon, OH?
The Census Bureau does not publish a reliable median household income estimate for Marathon — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Marathon, OH?
The poverty rate in Marathon is 11.0%. This means approximately 16 residents live below the federal poverty line.
What is the racial makeup of Marathon, Ohio?
Marathon's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Marathon, OH?
The Census Bureau does not publish a reliable median home value estimate for Marathon — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Marathon, Ohio?
0.0% of adults (25+) in Marathon hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.