Coralville is a city in Johnson County, Iowa, United States. It is a suburb of Iowa City and part of the Iowa City Metropolitan Statistical Area. The …Coralville is a city in Johnson County, Iowa, United States. It is a suburb of Iowa City and part of the Iowa City Metropolitan Statistical Area. The population was 22,318 at the 2020 census. Coralville is the location of the Edgewater Park Site, a 3,800-year-old archaeological site along the Iowa River. Edgewater is the oldest site in Iowa with evidence of domesticated plant use.
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