 south prairie is a town in pierce county, washington, united states. the population was 434 at the 2010 census. ==history== south prairie was platted in 1888 by frank bisson. it was named because of its location, south of connell's and porter's prairies. south prairie was officially incorporate
1909_establishments_in_Washington_(state) Towns_in_Pierce_County,_Washington Towns_in_Washington_(state)