Tri Delta Transit provides public transportation in Eastern Contra Costa County, California. To receive alerts, go to @tdtransitalerts. See you on the bus!
Joined May 2010
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Every day, our Reservations Team helps connect riders to the places they need to be. From answering calls to coordinating trips, these behind-the-scenes heroes help keep our community moving.
💙 Thank you to our amazing team for all that you do!
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Tri Delta Transit Week One Winner of the Youth Ride Free Leaderboard Contest.
Youth ride free June and July on Tri Delta Transit, County Connection and WestCAT. Join in the contest by going to the website and logging your rides. Prizes awarded weekly.
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☀️ HOT DAY ALERT ☀️
Temperatures are soaring today, and while our buses are air-conditioned, they may only be about 10° cooler than the temperature outside.
💧 Bring water
🧢 Dress for the heat
Stay cool, stay hydrated, and ride safely with us!
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☀️ Be advised temperatures are rising this week.
- Stay hydrated💧
-Dress for the heat🌞
- Travel safely with Tri Delta Transit. 💛🚌
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What a fun Friday we had celebrating the end of the school year! It was a great opportunity for us to connect with our local riders and youth to spread the word about Youth Ride Free. #youthridefree #schoolisout #pittsburgca #transit
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County Connection will be making some service changes & schedule adjustments effective this Sunday, June 7. For details, visit countyconnection.com/service….
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Summer Service Change: County Connection summer service changes take effect Sunday, June 7. County Connection is making time adjustments to some of our routes to better align with neighboring transit agency schedules and improve on time performance. > See which routes will be impacted: countyconnection.com/service…
ALT Illustration of a city bus next to bold text announcing upcoming service changes.
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If you're heading out to vote, take Tri Delta Transit to the polls or to an official ballot drop box. Get started with our online Trip Planner: trideltatransit.com
Find your polling place: contracostavote.gov/election…
Find a ballot drop box: contracostavote.gov/election…
ALT A flag sticker with "I Voted" on it and an image of a cartoon bus - Tommy Transit, the Tri Delta Transit mascot
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Tri Delta Transit celebrates and honors Pride Month.
“When you put love out in the world it travels, and it can touch people and reach people in ways that we never even expected.” — Laverne Cox. Thank you to all our passengers for riding and traveling with us.
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YOUTH RIDES FREE STARTS TODAY!
We're excited that today is the day that youth 18 and under ride free on Tri Delta Transit fixed and express route buses.
Plus visit YouthRideFree.com and register to log your rides to win fun badges and prizes.
You'll definitely fun!
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Tri Delta Transit is thankful for the Veterans among us and even more so those who have gave the ultimate sacrifice for our freedom and safety. We celebrate, honor and remember on this day.
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Tri Delta Transit will have adjusted service on Monday, May 25th in observance of the Memorial Day holiday. Service will be limited and administration offices closed. Celebrate - Remember - Honor on this day.
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Due to a special event, Route 372 in each direction will detour around Downtown Pittsburg (3rd Street to 6th Street). All stops between the detour will be out of service. Detour is in effect until the event is complete and cleared.
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Tri Delta Transit comparte esta encuesta de Contra Costa Health. Por favor, participe si le es posible.
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Tri Delta Transit is sharing this survey from Contra Costa Health. Please participate if you are able to.
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FOR 15-24 YEAR OLDS. IMPORTANT EVENT -
Contra Costa Health invites youth to the Community Youth Health Assessment on May 27th from 6-8 pm at the LUCC Offices, 808 West 3rd Street. Just look at the benefits.
Take Route 372 and walk a little to the center. It's important.
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Don't let gas prices leave you stranded. Take Tri Delta Transit and save money, skip driving & enjoy free Wi-Fi. A Day Pass (unlimited rides) is only $3.75. More at trideltatransit.com.
PRO TIP: Commuters who drive can request a FREE $25 Clipper card: 511.ccta.ca.gov/transit/tran…
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Tri Delta Transit will have adjusted service NEXT Monday, May 25th in observance of the Memorial Day holiday. Service will be limited and administration offices closed. Celebrate - Remember - Honor on this day.
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Our Community Shred-It Event was a great success thanks to everyone who came out and participated. We’re proud to provide events that support and serve our community.
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Start your summer planning!
Youth Ride Free in June and July 2026 on Tri Delta Transit fixed and express routes. Go to sports practice and events, jobs, visit friends, go to destinations and more. Start your Travel Era. No IDs, passes or applications required.
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Honor Veterans by taking part in this beautiful ceremony.
Tri Delta Transit routes that go to these locations are:
* 373 to the Oak View Memorial
* 371 to Antioch VFW
* or take the Antioch/Oakley Tri MyRide
Thank you to all who are honored at this ceremony.
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