Ottery St Mary, known as "Ottery", is a town and civil parish in the East Devon district of Devon, England, on the River Otter, about 10 miles …Ottery St Mary, known as "Ottery", is a town and civil parish in the East Devon district of Devon, England, on the River Otter, about 10 miles east of Exeter on the B3174. At the 2001 census, the parish, which includes the villages of Metcombe, Fairmile, Alfington, Tipton St John, Wiggaton, and West Hill, had a population of 7,692. The population of the urban area alone at the 2011 census was 4,898.