California State Route 128

State Route 128
Map of western California with SR 128 highlighted in red
Route information
Maintained by Caltrans
Length120.52 mi (193.96 km)
Major junctions
West end SR 1 near Albion
Major intersections
East end I-505 in Winters
Location
CountryUnited States
StateCalifornia
CountiesMendocino, Sonoma, Napa, Solano, Yolo
Highway system
SR 127 SR 129

State Route 128 (SR 128) is a state highway in the U.S. state of California, connecting the Mendocino coast to the Sacramento Valley, through the state's Wine Country. It runs from State Route 1 near Albion to Interstate 505 in Winters.