The Sydney's Hills Region area covers the suburbs of: Anembo, Annangrove, Araluen, Araluen North, Back Creek, Ballalaba, Baulkham Hills, Bella Vista, Bellmount Forest, Bendoura, Berlang, Bevendale, Biala, Binalong, Blakney Creek, Bombay, Boorowa, Boro, Braidwood, Breadalbane, Broadway, Budawang, Bungendore, Bywong, Castle Hill, Charleys Forest, Collector, Corang, Crestwood, Cullerin, Dalton, Durran Durra, Farringdon, Forbes Creek, Frogmore, Galong, Glenhaven, Goba Creek, Godfreys Creek, Gundillion, Gunning, Gurrundah, Harolds Cross, Hereford Hall, Hoskinstown, Illalong Creek, Jembaicumbene, Jerrabattculla, Jerrabomberra, Jinden, Jingera, Kain, Kenthurst, Kenyu, Kindervale, Krawarree, Lade Vale, Lake George, Larbert, Lerida, Majors Creek, Manar, Marlowe, Mayfield, Merricumbene, Merrill, Monga, Mongarlowe, Mulloon, Murrengenburg, Murringo, Neringla, Nerriga, Northangera, Oallen, Oolong, Oranmeir, Palerang, Primrose Valley, Reids Flat, Reidsdale, Rossi, Rye Park, Sassafras, Snowball, Tallaganda, Taylors Flat, Tomboye, Warri, Winston Hills, Wog Wog, Wollogorang and Wyanbene.