Dorchester, IA zip code
Dorchester, Iowa uses one zip code: 52140. Most of it is in Allamakee County. Together these zip codes are home to about 671 people.
Zip codes
1
Population
671
All zips combined
Largest zip
52140
671 residents
Zip codes in Dorchester
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 52140 | 671 | $72,188 |