- Services: Public transportation
- Phone: (925) 754-6622
- Location: 801 Wilbur Avenue, Antioch, California 94509
- Website: http://www.trideltatransit.com
- Social:
Tri Delta Transit has provided public transportation services to the communities in eastern Contra Costa County since 1977. Services include commuter service to BART, local bus routes, door-to-door transportation for seniors and individuals with disabilities, and on-demand mini-bus service in a growing number of neighborhoods.