SiteCity Business Directory

Post Office

San Antonio

185 businesses listed, showing 1–40. How we order them.

Most post office listings in San Antonio come with a way to reach them before you leave the house. Out of 185 locations on this page, 170 list a phone number and 178 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.

More about post office in San Antonio ↓

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.

Post Office in San Antonio by the numbers

SiteCity lists 185 businesses under Post Office in San Antonio, TX, as of November 4, 2026. 170 list a phone number and 178 list a website.

Most-listed ZIP codes: 78216 (11), 78251 (10) and 78209 (8).

Listings come from Overture Maps Foundation places data (release 2026-08-19.0, which includes Foursquare OS Places) and from businesses added or updated through SiteCity. How we count.

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