Before entering Jacksonport, WIS 57 passes through the twin unincorporated communities of Institute and Valmy. WIS 57 then comes close along the Lake Michigan shoreline before entering Baileys Harbor and returning inland for Sister Bay where it ends at WIS 42.
Before reaching Jacksonport, Wisconsin, WIS 57 passes through the towns of Institute and Valmy. The highway then travels along the shore of Lake Michigan before entering Baileys Harbor and finally winding back inland to reach Sister Bay, where it terminates at WIS 42.