- Services: Banks & Banking Associations
- Phone: (925) 778-6702
- Location: 3700 Lone Tree Way, Antioch, 94509
- Website: http://umpquabank.com
- Social:
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Antioch Chamber Contact
Antioch Chamber of Commerce
640 West 2nd Street
Antioch, CA 94509
PH: (925) 757-1800
Fax: (925) 757-5286