The Castaic Animal Care Center proudly serves the following cities/communities:

Acton (unincorporated area), Agua Dulce (unincorporated area), Bouquet Canyon (unincorporated area), Canyon Country (City), Canyon Country (unincorporated area), Castaic (unincorporated area), Gorman (unincorporated area), Green Valley (unincorporated area), Kagel Canyon (unincorporated area), Lang (unincorporated area), Newhall (City), Newhall (unincorporated area), San Fernando (City), San Fernando (unincorporated area), Santa Clarita (City), Saugus (City), Saugus (unincorporated area), Stevenson Ranch (unincorporated area), Tujunga (unincorporated area), Valencia (City), Valencia (unincorporated area)