Castaic is divided into five geographic regions, each represented by two seats on the Town Council. 

Region 1: Live Oak, North Bluffs, Hillcrest Park, Hasley Hills and the Valencia Commerce Center

Region 2: Val Verde

Region 3: Hasley, Sloan and Romero Canyons 

Region 4: Meadowood, Bravo, Encore, Castaic east of I-5 & south of Lake Hughes Road 

Region 5: Double C Ranch, Hidden Lake, Stonegate, NorthLake, Castaic east of I-5 and north of Lake Hughes Road