County Connection

The County Connection (Central Contra Costa Transit Authority, or CCCTA) provides transit service within central Contra Costa County with connections to Pleasanton and Antioch. The County Connection serves Clayton, Concord, Danville, Lafayette, Martinez, Moraga, Orinda, Pleasant Hill, San Ramon, Walnut Creek, and unincorporated areas of central county. Formed in 1980, the County Connection has grown from a fleet of 12 small buses to 121 ramp/wheelchair lift-equipped buses today.

925- 676-7500
2477 Arnold Industrial Way, Concord, CA, 94520

Transit Centers

There are 9 Transit Centers that serve County Connection.

View Transit Centers

RTC Regional Discount Card

RTC Processing Location

Customer Services: 2477 Arnold Industrial Way, Concord, CA 94520

Phone: (925) 676-7500; TTY (800) 735-2929 VOICE (800) 735-2922  


County Connection Administrative Offices are open for RTC processing Mon-Fri from 8:00 AM to 3:00 PM. Mobile customer service is also available. For more information, click here or contact Customer Service at 925-676-7500.

Note: Before visiting a transit agency office, call to verify hours of operation and payment options.

TTY Users: You can contact any telephone number through the California Relay Service at 711.

Learn More on RTC Regional Discount Card

Bicycle Access

Learn More about Bicycle Access on County Connection

511 Phone Service

From the Main Menu, use a shortcut to go directly to County Connection by saying: "County Connection"

From inside the Transit Agency menu, you can say any of the following agencies. If you want to use the touch-tone options, press the number "17" for County Connection.

From inside the Paratransit Agency menu, you can say any of the following agencies. If you want to use the touch-tone options, press the number "14" for County Connection LINK Paratransit.

Learn More about the 511 Phone Service


Clipper is currently accepted on Muni, BART, AC Transit, VTA, SamTrans, Caltrain and Golden Gate Transit and Ferry, and will eventually be accepted on all forms of Bay Area public transit. For information on using Clipper, please visit

Learn More about the Clipper Card and 511

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