Marathon, IA zip code
Marathon, Iowa uses one zip code: 50565. Most of it is in Buena Vista County. Together these zip codes are home to about 380 people.
Zip codes
1
Population
380
All zips combined
Largest zip
50565
380 residents
Zip codes in Marathon
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 50565 | 380 | $51,875 |