 For a long time, Whaddon was a separate parish; but in 1894 it was merged with Semington parish, and since then the population of Whaddon on its own has not been recorded.It was not until the late 20th century that Whaddon was united with its more obvious neighbour, Hilperton.The church of St. Mary the Virgin was built by the 12th century and still contains a blocked 12th century north doorway and a reconstructed 12th century south doorway with a decorated tympanum.