Maquoketa is a city in Jackson County, Iowa, United States. Located on the Maquoketa River, it is the county seat of Jackson County.

Sage Jamen Rosenfels is an American former professional football player who was a quarterback in the National Football League (NFL). He played college football for the Iowa State Cyclones and was selected by the Washington Redskins in the fourth round of the 2001 NFL draft. He also played in the NFL with the Miami Dolphins from 2002 to 2005, the Houston Texans from 2006 to 2008, the Minnesota Vikings in 2009, and the New York Giants in 2010. He spent portions of the 2011 season with the Vikings and Dolphins, after being released by the Giants during preseason. Through 2010, he had completed 351-of-562 passes for 4,156 yards, 30 touchdowns, and 29 interceptions, and had a career 81.2 quarterback rating.