System Expansion Progress Report

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  • Fall/Winter Progress Report

Latest updates

Welcome, neighbor

If you live within the Sound Transit district, you’ve been making a big investment in tomorrow. Your tax dollars are helping build the 252-mile regional network that will connect communities across three counties—plus creating more affordable housing and ensuring a greener, more equitable future for generations to come.

That’s important work, and we want to show you how it’s going. Explore our Fall/Winter Progress Report below for the latest news on Sound Transit's current service and the largest transit expansion program in the nation.

A better-connected region

Explore more stats from a record-breaking year.  

691K

people now live within 1 mile of a 1 Line, 2 Line, or T Line station

63

miles of service

51

stations

116

miles of service once upcoming extensions are complete

Expanding service

Regional and neighborhood connections

Use the interactive future system map below to explore Sound Transit’s voter-approved expansion, find project details, get involved, and stay informed.

KEY

New service
Parking & access
Operations & maintenance facilities
Link light rail
Sounder rail
Stride bus rapid transit

Expansion projects

Ride now

How to plan, pay, and ride with us

We’ve made it easy to find everything you need to ride Sound Transit’s Link light rail, Sounder trains, and ST Express buses. Plan your trip, learn how to pay your fare, and hop on board today!

Ride the wave

Beyond transit

Making our region more livable

Whether you ride transit or not, we all benefit from fewer cars on our roadways, a cleaner and greener environment, more affordable housing, and equitable access to opportunities and services across our region. 

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