County Connection was formed in 1980 as a Joint Powers Agency under the legal name The Central Contra Costa Transit Authority. Today County Connection provides fixed-route and paratransit bus service throughout the communities of Concord, Pleasant Hill, Martinez, Walnut Creek, Clayton, Lafayette, Orinda, Moraga, Danville, San Ramon, as well as unincorporated communities in Central Contra Costa County.
County Connection operates a fleet of 121 fully accessible transit buses and 63 paratransit vehicles.