Wallingford, IA is a city located in Emmet County, Iowa and has a land area of 21.59 square miles (55.92 km2). The water area for the city is 2.26 square miles or 5.85 km2. There is one unique zip code in Wallingford, Iowa and it is 51365. The area code(s) for Wallingford is 712.
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