Ogden is a city in Yell Township, Boone County, Iowa, United States. The population was 2,007 at the time of the 2020 census, down 1.8% from 2,044 in 2010. It is part of the Boone, Iowa Micropolitan Statistical Area, which is a part of the larger Ames-Boone, Iowa Combined Statistical Area.

Boone County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 26,715. Its county seat is Boone.