The ZIP code 90102 is a numeric identifier used by the United States Postal Service to streamline mail sorting and delivery in a specific region of Los Angeles County, California. This area is not a standalone city or neighborhood but a postal designation that primarily serves parts of the South Bay and unincorporated Los Angeles County.
Understanding 90102 helps residents, businesses, and anyone sending or receiving packages pinpoint regional expectations around mail delivery, local services, and geographic context. This guide explains what 90102 covers, where it is located, and how it is used in practical, everyday situations.