Pleasanton is a train station in Pleasanton, California. The station is served by Altamont Corridor Express (ACE) trains between San Jose Diridon Station and Stockton. It is located across the street from the entrance to the Alameda County Fairgrounds. Passengers may board County Connection express buses to job centers or residences in Contra Costa County, such as Bishop Ranch business park in the San Ramon Valley; the line's terminus is Walnut Creek BART station.