Rules for ZIP Code 94128

ZIP code 94128 is governed by the city of South San Francisco, CA, home to about 69% of the ZIP's residents. The ordinances shown below come from South San Francisco's own code and apply to residential and commercial properties within its limits, from noise restrictions and parking to building permits and animal regulations.

Each topic below links to the full ordinance breakdown with specific code sections, fine amounts, and answers to common questions. The data is sourced from the official municipal code and verified by our editorial team.