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SF Bay AreaCounty Connection

County Connection 21 bus

Walnut Creek BART / San Ramon

79 % on time

County Connection 21 bus Stop List and Next Departures

The County Connection 21 - Walnut Creek BART / San Ramon bus serves 48 bus stops in the SF Bay Area area departing from Walnut Creek BART and ending at San Ramon Transit Center. Scroll down to see upcoming 21 bus times at each stop and the next scheduled 21 bus times will be displayed. The full 21 bus schedule as well as real-time departures (if available) can be found in the Transit app.

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Stops
Fri, Feb 20, 2026
  • Walnut Creek BARTWheelchair accessible7:13 AM
  • N California Blvd and Lacassie AveWheelchair accessible7:16 AM
  • N California Blvd and Cole AveWheelchair accessible7:16 AM
  • N California Blvd and Trinity AveWheelchair accessible7:17 AM
  • N California Blvd and Bonanza StWheelchair accessible7:17 AM
  • S California Blvd and Mt Diablo Blvd and Olympic BlvdWheelchair accessible7:18 AM
  • S California Blvd and Botelho DrWheelchair accessible7:19 AM
  • Newell Ave and Kaiser Medical CenterWheelchair accessible7:20 AM
  • S Main St and Kaiser Medical CenterWheelchair accessible7:21 AM
  • S Main St and Creekside DrWheelchair accessible7:23 AM
  • S Main St and Crest AveWheelchair accessible7:24 AM
  • S Main St and Rudgear RdWheelchair accessible7:24 AM
  • Danville Blvd and Horse Trail Ct7:25 AM
  • Danville Blvd and via Robles7:26 AM
  • Danville Blvd and Hillgrade Ave7:26 AM
  • Danville Blvd and Livorna Rd7:27 AM
  • Danville Blvd and Ridgewood Rd7:28 AM
  • Danville Blvd and St Alphonsus CtWheelchair accessible7:29 AM
  • Danville Blvd and Alamo PlazaWheelchair accessible7:29 AM
  • Danville Blvd and Las Trampas RdWheelchair accessible7:30 AM
  • Danville Blvd and Alamo Womens Club7:31 AM
  • Danville Blvd and La Serena Ave7:31 AM
  • Danville Blvd and Hemme Ave7:32 AM
  • Danville Blvd and Camille Ave7:33 AM
  • Danville Blvd and Wayne Ave7:34 AM
  • Danville Blvd and Hartford Rd7:34 AM
  • Danville Blvd and Del Amigo RdWheelchair accessible7:36 AM
  • Danville Blvd and Railroad AveWheelchair accessible7:37 AM
  • Railroad Ave and Love Ln and Linda Mesa AveWheelchair accessible7:37 AM
  • Railroad Ave and Prospect AveWheelchair accessible7:38 AM
  • San Ramon Valley Blvd and Sonora AveWheelchair accessible7:39 AM
  • San Ramon Val Blvd and Danville Town and Country Shopping CtrWheelchair accessible7:40 AM
  • San Ramon Valley Blvd and Livery-MercantileWheelchair accessible7:40 AM
  • Danville Park and RideWheelchair accessible7:42 AM
  • Camino Ramon and Rose GardenWheelchair accessible7:43 AM
  • Camino Ramon and San Thomas Way7:44 AM
  • Camino Ramon and El Capitan DrWheelchair accessible7:45 AM
  • Camino Ramon and Saint Patricks Dr7:46 AM
  • Camino Ramon and Greenbrook DrWheelchair accessible7:47 AM
  • San Ramon Valley Blvd and Ridgeland DrWheelchair accessible7:48 AM
  • San Ramon Valley Blvd and Hooper DrWheelchair accessible7:49 AM
  • San Ramon Valley Blvd and Purdue RdWheelchair accessible7:50 AM
  • Fostoria Way and Crow Canyon PlWheelchair accessible7:52 AM
  • Camino Ramon and Fostoria WayWheelchair accessible7:53 AM
  • Camino Ramon and Crow Canyon RdWheelchair accessible7:53 AM
  • Camino Ramon and Crow Canyon RdWheelchair accessible7:54 AM
  • Camino Ramon and Norris Canyon RdWheelchair accessible7:55 AM
  • San Ramon Transit CenterWheelchair accessible7:58 AM
  • County Connection Walnut Creek BART / San Ramon map

    County Connection 21 bus route map

    The County Connection 21 - Walnut Creek BART / San Ramon bus route map is shown above. The route map shows you an overview of all the stops served by the County Connection 21 bus to help you plan your trip on County Connection. Opening the app will allow you to see more detailed information about the route on a map including stop specific alerts, such as stops that have been closed or moved. You can also see the location of vehicles in real-time on the route map so you know when the 21 bus is approaching your stop.

    See the detailed route map

    County Connection 21 bus Service Alerts

    Open the Transit app to see more information about any active disruptions that may impact the 21 bus schedule, such as detours, moved stops, trip cancellations, major delays, or other service changes to the bus route. The Transit app also allows you to subscribe to receive notifications for any service alert issued by County Connection so that you can plan your trip around any active or future disruptions.

    See all alerts

    County Connection 21 bus Service Frequency

    The next 21 bus leaves Walnut Creek BART at 7:13 AM, and arrives at San Ramon Transit Center at 7:58 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

    See all departures

    County Connection 21 bus On-Time Performance

    79 % on time

    79% of riders report that the County Connection 21 bus arrived on time on their previous trip. In the past 30 days, 9 riders reported on the on-time performance of the 21 bus. Compared to other County Connection lines, the 21 bus is ranked 9 out of 51 County Connection lines. These on-time performance stats are user reported and may differ from official County Connection metrics. See more details about on time, late or early departure reports for the 21 by opening the Transit app.

    See all on-time performance details

    County Connection 21 bus FAQ

    Other County Connection bus schedules, routes and maps

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