These boundaries took effect as of the 2018 election. Therefore, residents in the following areas are constituents of the Morialta electoral district:

• Ashton
• Athelstone
• Basket Range
• Castambul
• Cherryville
• Cudlee Creek
• Forest Range
• Gumeracha
• Highbury
• Kenton Valley
• Lenswood
• Lobethal
• Marble Hill
• Montacute
• Mount Torrens
• Norton Summit
• Rostrevor
• Summertown
• Teringie
• Uraidla
• Woodforde