Boulder Zip Codes

Boulder is quite large and has a lot of zip codes. These zip codes help to demarcate the city into various areas. There are a number of zip codes that run in a sequential manner, making it easy to understand areas and identify them.

Boulder Zip Code Directory

80301
80302
80303
80304
80305
80306 (PO BOX)
80307 (PO BOX)
80308 (PO BOX)
80309 (UNIQUE)
80310 (UNIQUE)
80314 (UNIQUE)
80321 (UNIQUE)
80322 (UNIQUE)
80323 (UNIQUE)
80328 (UNIQUE)
80329 (UNIQUE)