Demographics & People — Marathon, Iowa
Population Overview
| Population (Census) | 199 |
|---|
| Estimated 2026 | ~300 |
|---|
| Median Age | 53.5 |
|---|
| Total Households | 91 |
|---|
| Family Households | 45 |
|---|
| Average Household Size | 2.19 |
|---|
| Diversity Index | 0.1213 (relatively homogeneous) |
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Race & Ethnicity
| White | 173 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 12 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 61 |
| American | 43 |
| Unclassified or not reported | 42 |
| Irish | 22 |
| Dutch | 20 |
| Other groups | 19 |
| English | 13 |
| Hispanic: Hispanic or Latino | 13 |
| Polish | 10 |
| Hispanic: Mexican | 10 |
Language
| English Only | 185 |
|---|
| Spanish | 10 |
|---|
| Population 5+ | 195 |
|---|
Veterans
| Veterans | 10 |
|---|
| Population 18+ | 158 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Marathon, Iowa.
