Kingsley is a city in Plymouth County, Iowa, United States, which is located within Garfield Township. The population was 1,396 at the time of the 2020 census. The city was originally known as the village Quorn, which was founded by two brothers, Frederick and William B. Close. Quorn was named after the Quorn Hunt in England. The village was later relocated to a different part of Iowa and named Kingsley due to a railroad not running through the original area. The railroad was designed by the Chicago and North Western Transportation Company. Kingsley was founded on January 15, 1884 and the centennial celebration was held in June 1984. Kingsley includes organizations, recreational activities, and a local government consisting of a mayor and a city council. The schools are an elementary school and a high school, with the middle school being located in Pierson.

Plymouth County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 25,698. The county seat is Le Mars. Plymouth County was named after Plymouth, Massachusetts.