Electoral district of Castle Hill

Castle Hill New South Wales—Legislative Assembly
Location within Sydney
State	New South Wales
Created	2007
MP	Ray Williams
Party	Liberal Party of Australia
Namesake	Castle Hill
Electors	53,050 (2015)
Area	99.95 km2 (38.6 sq mi)
Demographic	Inner Metropolitan

Castle Hill is an electoral district of the Legislative Assembly in the Australian state of New South Wales. It is represented by Ray Williams of the Liberal Party.

It is an urban electorate in Sydney's north west, taking in the suburbs of Annangrove, Beaumont Hills, Box Hill, Glenhaven, Nelson and parts of Castle Hill, Dural, Kellyville, Kenthurst, Maraylya, Middle Dural, Round Corner and Rouse Hill.

The electorate formed during the redistribution in 2004 and replaced the former electorate of The Hills, which was abolished at the same time. It was first contested at the 2007 election, when it was won by Michael Richardson, previously the member for The Hills. Castle Hill is considered a safe seat for the Liberal Party.