Mappowder is a village and civil parish in the county of Dorset in southern England. The parish lies approximately 9 miles southeast of the town of Sherborne and covers about 1,900 acres at an elevation of 75 to 160 metres. It is sited on Corallian limestone soil at the southern edge of the Blackmore Vale, close to the northern scarp face of the Dorset Downs. In the 2011 census the parish had 71 dwellings, 69 households and a population of 166.