Antioch, CA

ZIP code 94509 covers the city of Antioch, California. This area is known for its scenic waterfront views along the San Joaquin River and Black Diamond Mines Regional Preserve offering hiking trails and historical sites. The area is also home to the Antioch Speedway, a popular dirt track racing venue. With a diverse population and a range of recreational opportunities, ZIP code 94509 is a vibrant community in the East Bay Area.