Public Transportation Benefit Area
Much like a fire or school district, the Public Transportation Benefit Area (PTBA) is a special taxing district established by Washington State for the purpose of providing public transportation. Our PTBA includes the cities of Airway Heights, Cheney, Medical Lake, Millwood, Liberty Lake, Spokane, and Spokane Valley, as well as portions of the unincorporated county surrounding those municipalities. Originally established in 1980, the PTBA was redrawn in 2006 to more closely reflect the urban nature of public transportation. The redrawn boundary (248 square miles) was based closely (but not entirely) on the Spokane County Urban Growth Area (UGA), urban growth reserve boundaries, and on current precinct and school district boundaries. The 2020 Spokane County PTBA population estimate is 442,499. View a Map of the PTBA.