| Zip Code | City | Population ↓ |
|---|---|---|
| 66523 | Osage City | 3,796 |
| 66414 | Carbondale | 2,513 |
| 66524 | Overbrook | 2,412 |
| 66451 | Lyndon | 1,834 |
| 66413 | Burlingame | 1,711 |
| 66537 | Scranton | 1,222 |
| 66543 | Vassar | 1,044 |
| 66528 | Quenemo | 785 |
| 66510 | Melvern | 683 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Osage County, Kansas (US Census).