Wisconsin State Route 28 east-west across east-west across Northern Washington County. It runs from the Sheyboyban/Washington County Line, near Boltonville, to the Washington/Dodge County Line, near Theresa. WI St Rt 28 passes through the following towns in Washington County. Boltonville Kewaskum
WB WI St Rt 28 east of south U.S. Rt. 45. A junction marker on NB U.S. Rt. 45. A guide marker on NB U.S. Rt. 45. NB U.S. Rt. 45/WB WI St Rt 28 at Knights Ave. NB U.S Rt. 45/WB WI St Rt 28 at north U.S. Rt. 45.