Walnut, IA zip code
Walnut, Iowa uses one zip code: 51577. Most of it is in Pottawattamie County. Together these zip codes are home to about 1.6K people.
Zip codes
1
Population
1.6K
All zips combined
Largest zip
51577
1,561 residents
Zip codes in Walnut
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 51577 | 1,561 | $71,518 |