Rules for ZIP Code 94587

ZIP code 94587 is governed by the city of Union City, CA, home to about 63% of the ZIP's residents. The ordinances shown below come from Union City'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.