Castle Hill Community

The state electorate of Castle Hill has an approximate area of 100 km².

It is comprised of the suburbs of Annangrove, Beaumont Hills, Box Hill and Nelson plus parts of Castle Hill, Dural, Glenhaven, Kellyville, Kenthurst, Maraylya and Rouse Hill.

It is within the council of The Hills Shire.

It is surrounded by the state electorates of Baulkham Hills, Epping, Hawkesbury, Hornsby and Riverstone.

It is comprised of parts of the federal electorates of Berowra and Mitchell.