Onaga zipcode
| City | Onaga |
| ZIP Code | 66521 |
| Type | Standard |
| State Code | KS |
| State | Kansas |
ZIP code of Onaga is 66521. This place is located in Kansas state in US. To send any postal service to Onaga, you must use 66521 zipcode.
The ZIP code 66521 is also used with 2 more city names of Kansas.
- Duluth, KS
- Wheaton, KS