Chula Vista, CA

ZIP code 91912 is a special-use postal code associated with Chula Vista, California, and is primarily used for PO Box mailing rather than a geographically defined neighborhood. It therefore has no reliably assignable set of physical landmarks. Chula Vista’s better-known attractions—including its Bayfront, Chula Vista Center, and North Island Credit Union Amphitheatre—are in the broader city, but are not necessarily within 91912.