9 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 66523 | Osage City | 3,873 |
| 66524 | Overbrook | 2,371 |
| 66414 | Carbondale | 2,349 |
| 66451 | Lyndon | 1,809 |
| 66413 | Burlingame | 1,697 |
| 66537 | Scranton | 1,309 |
| 66543 | Vassar | 995 |
| 66528 | Quenemo | 876 |
| 66510 | Melvern | 619 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Osage County, Kansas (US Census).