The Jackson County Courthouse in Maquoketa, Iowa – Farragutful, CC BY-SA 4.0 – Wikimedia Commons Jackson County is located in Iowa. About 19,444 people live here. Between 2010 and 2020, the population declined from 19,848 to 19,485. The area covers about 1,683.0 square kilometers. The region is divided into 11 Municipalities. The region was founded in 1837. The name originates from Andrew Jackson (president of the United States from 1829 to 1837) Jackson County is county in Iowa, United States. More information at www.co.jackson.ia.us.