Crawford County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 16,525. Its county seat is Denison. The county was named for William Harris Crawford, U.S. senator from Georgia and United States Secretary of the Treasury.
County Courthouse, Denison
View of Crawford County and adjacent counties, with Dennison just above the center. Taken from the International Space Station on July 14, 2002.
Denison is a city in Crawford County, Iowa, United States, along the Boyer River, and located in both Denison Township and East Boyer Township. The population was 8,373 at the time of the 2020 census. It is the county seat of Crawford County.
Downtown Denison
Aerial view of Denison from the southwest, 2012