Twin Transit bus route updates launched on Tuesday, September 5th, 2023. For more information, please visit here.
Twin Transit offers fixed route bus routes throughout Lewis County communities and along our major corridors. City routes operate throughout the Twin Cities of Centralia and Chehalis. Our corridor routes offer an express service to Grand Mound, Tumwater, and Olympia (Green line), an express service to Kelso (Purple line), and a US HWY 12 Corridor route to Morton. Twin Transit service operates Monday – Friday from 6:00 a.m. to 7:00 p.m., and Saturday – Sunday from 7:00 a.m. to 4:00 p.m. The Purple line and the Brown line currently operate during the weekdays only.
Scroll down for full route maps and timetables. Double click the timetable to view for a large-scale easy-to-read version. For fare details and pricing, click here. To see a short list of rider guidelines, click here.
For information on Twin Transit’s door-to-door transportation program, DARTT, click here. This program offers direct transportation throughout Lewis County and central Thurston County.
From Twin Transit routes, passengers can also connect with Rural Transit, which offers connections to Tenino, Rainier, Rochester, Tumwater, the Chehalis Reservation and Grand Mound; and Intercity Transit, which offers connections throughout Olympia, Lacey, Aberdeen and beyond; and RiverCities Transit, which offers connections throughout Cowlitz County!