Bus 21 route
Route stops
94 stops • 2 directions
- San Ramon Transit Center
- Camino Ramon & Bishop Ranch 7
- Camino Ramon & Norris Canyon Road
- Camino Ramon & Crow Canyon Road
- Camino Ramon & Crow Canyon Road
- Fostoria Way & Camino Ramon
- Fostoria Way & Camino Ramon
- San Ramon Valley Boulevard & Fostoria Way
- San Ramon Valley Boulevard & Hooper Drive
- San Ramon Valley Boulevard & Ridgeland Drive
- Camino Ramon & Baldwin Drive
- Camino Ramon & Saint Patrick's Drive
- Camino Ramon & El Capitan Drive
- Camino Ramon & San Thomas Way
- Camino Ramon & Sycamore Valley Road
- Danville Park and Ride
- San Ramon Valley Boulevard & Sycamore Square
- San Ramon Valley Boulevard & Bank of America
- San Ramon Valley Boulevard & Sonora Avenue
- Railroad Avenue & Church Street
- Railroad Avenue & Linda Mesa Avenue
- Railroad Avenue & Love Lane
- Danville Boulevard & La Gonda Way
- Danville Boulevard & El Cerro Boulevard
- Danville Boulevard & Hartford Road
- Danville Boulevard & El Portal
- Danville Boulevard & Camille Avenue
- Danville Boulevard & Hemme Avenue
- Danville Boulevard & La Serena Avenue
- Danville Boulevard & South Avenue
- Danville Boulevard & Las Trampas Road
- Danville Boulevard & Alamo Plaza
- Danville Boulevard & Saint Alphonsus Court
- Danville Boulevard & Ridgewood Road
- Danville Boulevard & Livorna Road
- Danville Boulevard & Hillgrade Avenue
- South Main Street & Rudgear Road
- South Main Street & Creekside Drive
- South Main Street & Lilac Drive
- South California Boulevard & Newell Avenue
- South California Boulevard & Botelho Drive
- South California Boulevard & Olympic Boulevard
- North California Boulevard & Mount Diablo Boulevard
- North California Boulevard & Bonanza Street
- North California Boulevard & Cole Avenue
- Walnut Creek BART
- Walnut Creek BART
- North California Boulevard & Lacassie Avenue
- North California Boulevard & Cole Avenue
- North California Boulevard & Trinity Avenue
- North California Boulevard & Bonanza Street
- South California Boulevard & Mount Diablo Boulevard & Olympic Boulevard
- South California Boulevard & Botelho Drive
- Newell Avenue & Kaiser Medical Center
- South Main Street & Kaiser Medical Center
- South Main Street & Creekside Drive
- South Main Street & Crest Avenue
- South Main Street & Rudgear Road
- Danville Boulevard & Iron Horse Court
- Danville Boulevard & Via Robles
- Danville Boulevard & Hillgrade Avenue
- Danville Boulevard & Livorna Road
- Danville Boulevard & Ridgewood Road
- Danville Boulevard & Saint Alphonsus Court
- Danville Boulevard & Alamo Plaza
- Danville Boulevard & Las Trampas Road
- Danville Boulevard & Alamo Women's Club
- Danville Boulevard & La Serena Avenue
- Danville Boulevard & Hemme Avenue
- Danville Boulevard & Camille Avenue
- Danville Boulevard & Wayne Avenue
- Danville Boulevard & Hartford Road
- Danville Boulevard & Del Amigo Road
- Danville Boulevard & Railroad Avenue
- Railroad Avenue & Love Lane and Linda Mesa Avenue
- Railroad Avenue & Prospect Avenue
- San Ramon Valley Boulevard & Sonora Avenue
- San Ramon Valley Boulevard & Danville Town and Country Shopping Center
- San Ramon Valley Boulevard & Livery-Mercantile
- Danville Park and Ride
- Camino Ramon & Rose Garden
- Camino Ramon & San Thomas Way
- Camino Ramon & El Capitan Drive
- Camino Ramon & Saint Patrick's Drive
- Camino Ramon & Greenbrook Drive
- San Ramon Valley Boulevard & Ridgeland Drive
- San Ramon Valley Boulevard & Hooper Drive
- San Ramon Valley Boulevard & Purdue Road
- Fostoria Way & Crow Canyon Place
- Camino Ramon & Fostoria Way
- Camino Ramon & Crow Canyon Road
- Camino Ramon & Crow Canyon Road
- Camino Ramon & Norris Canyon Road
- San Ramon Transit Center
Route map

Common Questions About This Route
We've gathered all the essentials based on open data. Straight answers to the questions people ask most often.What number is assigned to this route?
Route number is 21. Remember it—the number stays the same everywhere: on the stop display, in apps, on the vehicle itself. Look for 21 specifically. If you're not sure you found the right stop, just ask someone nearby: 'Does bus 21 stop here?'
Where does bus #21 run?
This route serves the Oakland (USA) region. In larger metro areas, routes can pass through several districts or towns. To know for sure if it works for you, pull up the route map and check the key stops and direction.
How often does it run?
Average interval is 30. This can shift with traffic, weather, and road conditions. For accurate wait times, check real-time tracking or the stop display if there is one.
Who's the official operator?
Operator is Central Contra Costa Transit Authority. This is the official company responsible for the route. If you run into problems (rude driver, breakdown, dirty vehicle, delays)—contact them. It helps to note the time, direction, and route number—makes your complaint more specific and gets handled faster. Contact info is usually on the company website or in transit apps.
Which transit system does it belong to?
This route is part of the 'County Connection' transit system. Within one network, payment and transfer rules are often consistent. Terms can differ though, so check current fares and payment methods in up-to-date sources before your trip.
How long from first stop to last?
Full journey takes about 00:45 in normal traffic. During rush hour or road work, it can take noticeably longer. If your trip is time-sensitive, add cushion and check arrival predictions on official sources.
What color is the route on maps?
On transit maps this route is marked in #1E6B9B. Color helps you spot the line quickly and tell it apart from others. In some cities the line color appears on stop signs or even on the vehicles themselves. The exact shade might vary between sources—go by route number and endpoints instead.
Is there a fare?
Yes. Payment rules and discounts can differ by region and vehicle type. If it matters to you, verify current fares and ticket/validation requirements before traveling.
What payment methods are available?
Payment methods: cash, Clipper. In practice, options can vary depending on how new the vehicle is and what equipment it has. Have a backup payment method just in case, and check the validator or ask the driver when boarding.
Can you board with a wheelchair?
Yes. Accessibility usually means low-floor entry with ramps and designated spaces. Even when accessibility is stated, conditions can vary on specific vehicles and stops. If this is critical, check the vehicle type for your specific trip and confirm ramp/entry availability beforehand.
Are bikes allowed?
Yes. If allowed, still try to avoid rush hour—in a packed vehicle with a bike it's rough for you and everyone else. Check the rules ahead: sometimes you need to fold the bike or buy a separate ticket.
Additional Route Information
County Connection 21: San Ramon Transit Center => Walnut Creek BART
Reference
21
Origin
San Ramon Transit Center
Destination
Walnut Creek BART
Interval
30
Route network
County Connection
Operator
Central Contra Costa Transit Authority
Opening hours
Mo-Fr 06:44-21:19
Travel time
00:45
Color
#1E6B9B
Fare
Wheelchair accessibility
Payment: cash
Payment: Clipper
Payment: Prepaid ticket
Bicycle area
Data source
https://countyconnection.com/routes/21/
County Connection 21: Walnut Creek BART => San Ramon Transit Center
Reference
21
Origin
Walnut Creek BART
Destination
San Ramon Transit Center
Interval
30
Route network
County Connection
Operator
Central Contra Costa Transit Authority
Opening hours
Mo-Fr 05:43-21:28
Travel time
00:45
Color
#1E6B9B
Fare
Wheelchair accessibility
Payment: cash
Payment: Clipper
Payment: Prepaid ticket
Bicycle area
Data source
https://countyconnection.com/routes/21/
Quick overview
Explore the bus 21 route in Oakland (USA). 2 directions, 94 stops, and an interactive route map available in one place.
Data source
The data is obtained from open sources and may contain inaccuracies. Route information is updated regularly.
