County:  Dubuque

Peosta is named in memory of the leader of a local Native American tribe that once lived in Dubuque County. Chief Peosta, of the Mesquakie tribe, was a close friend of Julien Dubuque, one of the first European settlers in the area. Dubuque was also the founder of the City of Dubuque, Iowa, and was allegedly married to Chief Peosta's daughter, who was reportedly named "Potosa," after whom the name of Potosi, Wisconsin, was incorrectly attributed.

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