Dorchester Zip Codes - Allamakee County IA

Dorchester, IA Zip Code Map

Dorchester, IA is a city located in Allamakee County, Iowa and has a land area of 73.82 square miles (191.19 km2). The water area for the city is 0.02 square miles or 0.05 km2. There is one unique zip code in Dorchester, Iowa and it is 52140. The area code(s) for Dorchester is 563.

Zip Codes for Dorchester, IA (1)
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52140 Dorchester Allamakee

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