Cities, Towns, Neighborhoods & Other Populated Places in Polk County.
| City Name | Title | County | Population |
|---|---|---|---|
| Des Moines | City in and county seat of Polk County, Iowa, United States, and Iowa federated state capital city | 214,237 | |
| West Des Moines | City in Polk County, Iowa, United States | 67,899 | |
| Ankeny | Suburb in Iowa | 67,355 | |
| Urbandale | City in Polk and Dallas counties, Iowa, United States | 44,379 | |
| Johnston | City in Iowa, United States | 22,582 | |
| Altoona | City in Polk County, Iowa, United States | 19,221 | |
| Clive | Human settlement in Iowa, United States of America | 17,242 | |
| Grimes | City in Iowa, United States | 14,804 | |
| Pleasant Hill | American city in Iowa | 10,019 | |
| Bondurant | City in Polk County, Iowa, United States of America | 6,958 | |
| Polk City | American city in Iowa | 4,961 | |
| Windsor Heights | City in Polk County, Iowa, United States | 4,809 | |
| Mitchellville | City in Iowa, United States | 2,258 | |
| Elkhart | American city in Iowa | 918 | |
| Runnells | City in Polk County, Iowa, United States | 504 | |
| Alleman | City in Polk County, Iowa, United States | 452 |