Quasqueton is a city in Buchanan County, Iowa, United States. The population was 570 at the time of the 2020 census. Just northwest of the town is Cedar Rock, a home designed by Frank Lloyd Wright, which is maintained by the state as a museum.

Buchanan County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 20,565. Its county seat is Independence. The county was created in 1837 and was named in honor of Senator James Buchanan, the 15th President of the United States.