Dubuque, Iowa vs Ames, Iowa Size in Square Miles Ames, Iowa’s size is 27.9 square miles, and Dubuque, Iowa’s size is 32 square miles. This means that Dubuque’s size is about 1.1 times as large as Ames’s. Put another way, Ames’s size is about 87% of Dubuque’s.* Ames, Iowa vs Dubuque, Iowa Population Graphed Ames, […]