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T.h.Chi delivers licensed, lab-tested cannabis to Byron, Bethel Island and the surrounding delta communities in 94514. Byron is one of our furthest service areas, so orders carry an $80 minimum — but delivery is free, and rural delta addresses that most services skip are firmly inside our map.
Service Area
Byron, Contra Costa County
New customer? Take 20% off your first Byron order with code WELCOME20.
Typical arrival
50-90 minutes
Covered in Byron
94514
Order minimum
Free delivery over minimum
Open every week
9:00 AM – 9:30 PM

Licensed Delivery
Every product third-party lab tested
T.h.Chi is a delivery-only licensed cannabis service. There is no storefront to visit and no line to stand in — Byron customers browse the full menu online and we bring it to the door.
Most Byron orders arrive in 50-90 minutes, seven days a week from 9AM to 9:30PM.
Kanha, Backpack Boyz, Oakfruitland and more — the same menu the rest of the East Bay orders from.
No delivery fee in Byron on any order over the $80 minimum.
Pay however is easiest. Tax is included in the price quoted at checkout — no surprises at the door.
Seven categories, all lab-tested, all available at the same prices across our entire service area.

Premium indoor & exotic strains
Shop Flower
Top-shelf vape cartridges
Shop Cartridges
Gummies, chocolates & treats
Shop Edibles
Wax, shatter & live resin
Shop Concentrates
Ready-to-enjoy joints
Shop Pre-Rolls
Infused beverages
Shop Drinks
Lotions, balms & creams
Shop TopicalsBrands we carry
Premium names, delivered to Byron
Four steps from browsing to doorstep — no account required, no storefront visit.
Check the live menu for what's in stock today. Everything listed is available for delivery in Byron.
Order online or call (925) 628-9364. Orders in Byron need to clear the $80 minimum.
You must be 21+ with valid government-issued ID. First-time phone orders also need a selfie holding that ID.
Your order arrives in 50-90 minutes. Drivers stay in the vehicle and complete the handoff on dash cam.
Byron, Byron Hot Springs, Bethel Island and the ranch and delta addresses along Byron Highway and Bethel Island Road are all served. These are spread-out rural routes, so give us a little extra time and include clear directions or a cross street — many delta addresses are hard to pin on GPS.
ZIP codes served
Local landmarks nearby
Neighborhoods & districts we serve
Yes. Byron, Bethel Island and the surrounding delta addresses in 94514 are inside our service area — one of the reasons customers out there use us when other delivery services will not make the drive.
50-90 minutes to your door • Free delivery over $80 • 7 Days a Week • 9AM - 9:30PM
Must be 21+ with valid government-issued ID. Licensed cannabis delivery.