This page contains all the postal codes we have for Boulder, United States.
In many cases a single city has more than one postal code, so we will list all our records for this city.
To view the full details, select the postal code you want and proceed to the detailed page.
If only a single post code is listed, than this city has only one main post code ( usually happens with smaller towns or cities ).
Our records often include geographical coordinates of Boulder and it's corresponding postal code. In the result box below, you can find the postal code of Boulder and it's location on the map if we have the location information available. Every postal code is also located in a region or a district, in case we know the district or region of the city it will too be listed in the results. All kinds of additional information we have on Boulder may also be present such as geographical data, historical records or news about Boulder in general.