Indianola is a city in Warren County, Iowa, United States. The population was 12,998 at the 2000 census. It is the county seat of Warren County. Simpson College, a liberal arts college of the United Methodist Church, is in Indianola. Indianola is also the home of the National Balloon Classic and National Balloon Museum.
Indianola is located at 41°21?42?N 93°33?47?W / 41.36167°N 93.56306°W / 41.36167; -93.56306 (41.361756, -93.562987). According to the United States Census Bureau, the city has a total area of 9.2 square miles (23.8 km²), all of it land.
The Summerset Trail has its southern terminus at Indianola.