How many ZIP codes are in San Francisco?

San Francisco has 27 ZIP codes that cover a mapped part of the city, running from 94102 to 94158. The count comes from the Census Bureau, which draws an area for every ZIP code where people live.

Of those 27, one barely has residents. 94104 in the Financial District is mostly office towers and holds about 300 homes. The other 26 each have at least 500 homes, and each has its own San Francisco ZIP code page with rent, home values and vacancy. The count includes 94129 for the Presidio and 94130 for Treasure Island.

Some lists give a higher number because the Postal Service also assigns San Francisco ZIP codes that belong to no neighborhood. Those codes serve only PO boxes or a single large mail recipient, such as a government office. No streets sit inside them, so the Census has no data for them.