In total, not including those from the quest, 30 Demiguise Moon Statues can be found in Hogwarts Legacy, 11 of which are in hamlets scattered throughout the Highlands / World.
Demiguise Moon Statues become available after "The Caretaker's Lunar Lament" main quest and they can only be collected at night. Demiguise Moons are needed to learn the higher levels of Alohomora spell. This will allow you to open higher level locks.
Demiguise Moon (Aranshire)It's in a locked (Level 1 Lock) house, upper floor.
Demiguise Moon (Bainburgh)
Demiguise Moon (Brocburrow)It's in the locked (Level 1 Lock) house.
Demiguise Moon (Cragcroft)It's in the bedroom located on the upper floor of the house.
Demiguise Moon (Feldcroft)It's inside a locked (Level 2 Lock) house, on the ground floor, on the window sill.
Demiguise Moon (Irondale)It's inside the house.
Demiguise Moon (KeenBridge)It's inside the locked (Level 1 Lock) house.
Demiguise Moon (Lower Hogsfield)It's inside the house, next to the door.
Demiguise Moon (Marunweem)It's in a locked (Level 1 Lock) house.
Demiguise Moon (Pitt-upon-Ford)It's on the top floor of the house.
Demiguise Moon (Upper Hogsfield)It is located inside a locked (Level 1 Lock) house.
