Travis Credit Union is a not-for-profit financial institution specializing in helping its members achieve their financial goals. If you live, work, worship, attend school or have a relative in the 12-county Northern California region listed below, you can join. Counties served: Solano, Yolo, Contra Costa, Merced, Napa, Alameda, Colusa, Placer, Sacramento, San Joaquin, Sonoma, Stanislaus.