Griswold, IA zip code
Griswold, Iowa uses one zip code: 51535. Most of it is in Cass County. Together these zip codes are home to about 1.7K people.
Zip codes
1
Population
1.7K
All zips combined
Largest zip
51535
1,697 residents
Zip codes in Griswold
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 51535 | 1,697 | $76,371 |