Demographics & People — Marathon, Florida
Population Overview
| Population (Census) | 9,831 |
|---|
| Estimated 2026 | ~10,100 |
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| Median Age | 45.6 |
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| Total Households | 3,968 |
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| Family Households | 2,363 |
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| Average Household Size | 2.46 |
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| Diversity Index | 0.479 (moderately diverse) |
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Race & Ethnicity
| White | 6,999 |
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| Black or African American | 401 |
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| Asian | 54 |
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| Hispanic or Latino | 3,254 |
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Heritage & Ancestry
| Group | Count |
|---|
| Hispanic: Hispanic or Latino | 3,955 |
| Other groups | 3,946 |
| Unclassified or not reported | 2,560 |
| Hispanic: Cuban | 2,543 |
| Irish | 982 |
| German | 900 |
| English | 661 |
| Italian | 624 |
| Hispanic: Central American | 418 |
| Polish | 379 |
Language
| English Only | 6,908 |
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| Spanish | 2,122 |
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| Population 5+ | 9,296 |
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Veterans
| Veterans | 401 |
|---|
| Population 18+ | 7,860 |
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Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marathon, Florida.
