Boulder zipcode
| City | Boulder |
| ZIP Code | 80309 |
| Type | Company/Organization |
| State Code | CO |
| State | Colorado |
ZIP code of Boulder is 80309. This place is located in Colorado state in US. To send any postal service to Boulder, you must use 80309 zipcode.
You should avoid following 1 city name of Colorado to be used with the ZIP code 80309.
- University Of Colorado, CO