Demeter's cabin (#4) is the cabin that houses the demigod offspring of Demeter. It was destroyed when the Colossus Neronis attacked the camp. The inhabitants now reside in cabin 11 until the cabin can be rebuilt.
The roof of the cabin constructed of growing grass and has tomato vines growing on the walls. It has wild flowers and roses growing on the porch. The cabin color is a light shade of brown. It is in between Hera's and Athena's Cabin. Inside, there is a grassy floor and an oak tree in the middle of the cabin that holds up the ceiling.
- Katie Gardner - her status is unknown due to Miranda Gardner being the counselor in The Lost Hero.
- Miranda Gardiner - mentioned as head counselor of the Demeter cabin in The Lost Hero.
- Billie Ng
- Meg McCaffrey
- Many other demigods (two of them were mentioned in The Lost Hero.
- None are mentioned.
- Chlorokinesis: They have the ability to control plants. The children of Demeter helped in the Battle of Manhattan, and they frequently use their powers to make their cabin look good.
- Plant Telekinesis: The children of Demeter able to telekinetically manipulate fruits and vegetables, thus saving Apollo from two thugs.
- Plant Sensitivity: The children of Demeter can sense the location of various plants with superhuman precision, this is seen when Meg was able to quickly detect the odor of a golden apple in the Labyrinth. She later claims to have the ability to "hear" trees growing.
- Culinary Arts: They are natural cooks, as shown in The Last Olympian.
- Karpoi Summoning: As children of Demeter, they are able to summon Karpoi, like when Meg summoned Peaches.