 The village of Barmston gave its name to the ancient parish and ecclesiastical parishes of Barmston.The parish was bounded by watercourses of "Earl's Dike" (also known as "Watermill Grounds Beck") to the north, and "Barmston drain" to the south.In 1935 the civil parish was substantially enlarged with the addition of most of the parish of Fraisthorpe to the north, an increase of .