King is a single-member electoral district for the South Australian House of Assembly. It was created by the redistribution conducted in 2016, and was contested for the first time at the 2018 state election. The northern part is essentially semi rural and the southern part suburban. It is on the western foothills of the Mount Lofty Ranges at the northern end of metropolitan Adelaide. King is named after Len King, a former Chief Justice of the Supreme Court of South Australia and Attorney-General of South Australia in the second Dunstan government ministry.