The Federal Electorate of Casey includes the following places: Yering, Coldstream, Gruyere, Killara, Wandin, Seville, Mount (Mt) Evelyn, Lilydale, Chirnside Park, Croydon, Mooroolbark, Silvan, Montrose, Kalorama, Kilsyth, Olinda, Kallista, Monbulk, The Patch. Initially areas around Ringwood and Wantirna were included in its boundaries.