Asotin County Public Transportation Benefit Area: PTBA Share: TransportationNon-profit Asotin County Public Transportation Benefit Area: PTBA Visit Website 1494 Poplar St. Clarkston, WA 99403 (509) 758-3567 About About Asotin County Public Transit provides public transportation in Clarkston and Asotin and connects with Lewiston Transit at the Lewiston Community Center.