139th Street in River Township, South Dakota

139th Street in Walworth County is an unclassified road. It runs in an east-west direction and crosses 296th Avenue, 300th Avenue, 301st Avenue, 302nd Avenue and 303rd Avenue. It ends in a cul-de-sac and connects Brown Township and River Township. 139th Street also exists in Theodore Township, Ryan Township, Glenn Township and Surrey Township.