Here are all the postal codes assigned to Callahan. Our records often include geographical coordinates of Callahan and it's corresponding postal code. In the result box below, you can find the postal code of Callahan 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 Callahan may also be present such as geographical data, historical records or news about Callahan and in general.