Ankeny is a city in Polk County, Iowa, United States and a suburb of the state capital of Des Moines, as part of the Des Moines-West Des Moines, IA metropolitan statistical area. As of the 2020 census, the population of Ankeny was 67,887, making it the seventh most populous city in the state. It is one of the fastest-growing cities in Iowa. Currently, the city's incorporated area totals 29.14 square miles.

Polk County is located in the U.S. state of Iowa. As of the 2020 census, the population was 492,401. It is Iowa's most populous county, and home to over 15% of the state's residents. The county seat is Des Moines, which is also the capital city of Iowa. Polk County is included in the Des Moines–West Des Moines, IA Metropolitan Statistical Area.