Eastern Contra Costa Transit Authority — Tri Delta Transit
Transit agency function; provider and jurisdiction must be verified.[1]
Source checked October 26, 2026[1]www.trideltatransit.com
Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.
Contact details & office locations ↓Online services & information
Use the links below for official services and provider information. Check each service’s instructions and service area.
Read the official service information and the published route or programme conditions. Availability and eligibility depend on the named service; this guide does not verify an individual trip.
Service area: Published Eastern Contra Costa Transit Authority — Tri Delta Transit service area and route/programme conditions; county and city links are browsing contexts and do not establish all-address coverage or individual eligibility. [1]
Before you start
- Availability · Published operator service area; only the cited routes and programme conditions apply
- ECCTA, doing business as Tri Delta Transit, provides approximately 2 million trips each year to a population of roughly 315,000 residents in the 225 square miles of eastern Contra Costa County. [1]
Official fare information. Check the exact rider category, route, ticket/pass and payment method before using a quoted amount.
Service area: Published Eastern Contra Costa Transit Authority — Tri Delta Transit service area and route/programme conditions; county and city links are browsing contexts and do not establish all-address coverage or individual eligibility. [1]
Official fare information. Check the exact rider category, route, ticket/pass and payment method before using a quoted amount.
Service area: Published Eastern Contra Costa Transit Authority — Tri Delta Transit service area and route/programme conditions; county and city links are browsing contexts and do not establish all-address coverage or individual eligibility. [1]
Fees
Fees are quoted only when a source document supports the amount and conditions.
Check the official website for its current fee schedule. No fee should be assumed to be free.
Forms & documents
Official forms and document pages for this office’s services.
Sources & last checked2 source pages · 3 citations
Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.
- [1] The Eastern Contra Costa Transit Authority — About Us (opens in a new tab)
The Eastern Contra Costa Transit Authority · The Eastern Contra Costa Transit Authority — About Us — 90162 scope
Source reviewed October 26, 2026View supporting excerpt
ECCTA, doing business as Tri Delta Transit, provides approximately 2 million trips each year to a population of roughly 315,000 residents in the 225 square miles of eastern Contra Costa County.
- [2] The Eastern Contra Costa Transit Authority — official public transit information (opens in a new tab)
The Eastern Contra Costa Transit Authority · The Eastern Contra Costa Transit Authority — official public transit information — 90162 fares 2294c5a9306a
Source reviewed October 26, 2026View supporting excerpt
Fares and Tickets
- [3] The Eastern Contra Costa Transit Authority — official public transit information (opens in a new tab)
The Eastern Contra Costa Transit Authority · The Eastern Contra Costa Transit Authority — official public transit information — 90162 fares 0452790e213f
Source reviewed October 26, 2026View supporting excerpt
Fares and Passes