Rockdale, Iowa was a small unincorporated village formerly located just south of Dubuque, Iowa between Dubuque and Key West, Iowa. The …Rockdale, Iowa was a small unincorporated village formerly located just south of Dubuque, Iowa between Dubuque and Key West, Iowa. The village was situated on the Catfish Creek in Dubuque County, Iowa, and was the site of one of the first mills in the state of Iowa.
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