: Fill out the online version of PS Form 1093 , which includes your contact details and the names of any additional users authorized to receive mail at that box.
: Enter your zip code or street address into the PO Box search tool to find nearby Post Offices with available units. buy a post office box online
Once your online application is submitted, you have to finalize the process at the specific Post Office location you selected. You must bring: : Fill out the online version of PS