Our company recently moved into new location in Carroll, Iowa. Upon setting up our mail forwarding service, we discovered our local USPS would not delivery mail to our physciall address without an outside accessible mail box. The building we are currently leasing does not allow for outside mail boxes because of security, so we had to register for a PO Box.
As we were updating our Google+, Google Maps, and other local directory listings, we were concerned about local SEO. We also had a concern that people would find our address online and try to send us mail, which would never reach us unless they used our PO box. We put together some recommendations below along with some references to help you navigate the best way to set up your business online if you must use a PO Box.
We found this helpful link that guides you on setting up your business page correctly.