Polk County, Wisconsin Zip Codes
| Osceola | 7,880 |
| Amery | 7,839 |
| Saint Croix Falls | 4,958 |
| Luck | 3,704 |
| Frederic | 3,614 |
| Clear Lake | 3,051 |
| Turtle Lake | 2,839 |
| Balsam Lake | 2,810 |
| Dresser | 2,677 |
| Centuria | 2,211 |
| Star Prairie | 2,130 |
| Milltown | 1,539 |
| Cushing | 791 |
| Comstock | 692 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.