Marathon County, Wisconsin Zip Codes
| Wausau | 31,292 |
| Wausau | 24,874 |
| Schofield | 19,767 |
| Mosinee | 19,168 |
| Stratford | 5,557 |
| Athens | 4,943 |
| Edgar | 4,285 |
| Marathon | 4,225 |
| Rothschild | 4,209 |
| Colby | 3,831 |
| Abbotsford | 2,843 |
| Hatley | 2,699 |
| Ringle | 1,643 |
| Aniwa | 1,235 |
| Eland | 1,117 |
| Brokaw | 6 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.