United States Postal Service

Most post office listings in San Antonio come with a way to reach them before you leave the house. Out of 78 locations on this page, 69 list a phone number and 74 list a website, so you can call ahead about passport appointments or PO box availability instead of driving over and hoping someone's at the counter. Zip codes 78209, 78216, 78217, 78224, 78245, and 78250 each carry multiple entries, which helps if you're comparing a couple of branches near home or work before picking one.

None of these listings carry a verified badge, and paid placement isn't running in this category, so you won't see any location tagged Sponsored to push it above the rest. Every branch here sits in the same unranked order regardless of zip code or phone status. If you manage one of these post offices and the phone or website field is empty, you can claim the listing and add that information yourself, which saves the next San Antonio resident a wasted trip or a dead-end search.