Avoca, IA is a city located in Pottawattamie County, Iowa and has a land area of 87.41 square miles (226.39 km2). The water area for the city is 0.48 square miles or 1.24 km2. There is one unique zip code in Avoca, Iowa and it is 51521. The area code(s) for Avoca is 712.
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