Kingston upon Hull is a unitary authority in the East Riding of Yorkshire, England. Until 1 April 1996 it was a non-metropolitan district in Humberside.A third of the Council is elected each year with no election every four years. Since the boundary changes in 2002 until 2018, 59 councillors are elected from 23 wards with each ward electing either 2 or 3 councillors. Following a review, in 2017, by the Local Government Boundary Commission this was reduced to 57 councillors from 21 wards effective from the 2018 elections.