Boulder (CO state) ZIP code
ZIP code of Boulder (CO) is 80301. Below you can find map of Boulder, or look up other ZIP codes in Colorado or other US states. If Boulder's ZIP code is duplicated, and other places have same ZIP code number, you can use our ZIP code searcher by number 80301.
Boulder have more then one ZIP code. List of all Boulder's ZIP codes: 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308, 80309, 80310, 80314, 80321, 80322, 80323, 80328, 80329.