Head Counselor

Head counselors are demigods in charge of their cabin as well as all their siblings (if they have any as some cabins have only one person) at Camp Half-Blood. They choose their activities, go to war counsels, lead them to meals, and do cabin inspection. The role of head counselor is automatically given to the eldest demigod, but if a younger camper has completed more quests, they can challenge the head counselor and have a duel with them, and whoever wins becomes head counselor. This happened in The Lost Hero when Piper challenged Drew after completing her quest. Another way is that if the current head counselors willingly stepped down. For an example, Jake Mason willingly gave up his position to Leo Valdez.

Zeus - Cabin 1

 * Thalia Grace (former, joined the Hunters of Artemis)
 * Jason Grace (temporarily)

Hera - Cabin 2
Hera's cabin is honorary, as the goddess of marriage does not have any illegitimate demigod children.

Poseidon - Cabin 3

 * Percy Jackson

Demeter - Cabin 4

 * Katie Gardner (summer)
 * Miranda Gardiner (spring, fall, and winter)

Ares - Cabin 5

 * Clarisse La Rue

Athena - Cabin 6

 * Annabeth Chase

Apollo - Cabin 7

 * Lee Fletcher (former, deceased)
 * Michael Yew (former, presumed deceased)
 * Will Solace

Artemis - Cabin 8
Even though Artemis is a virgin goddess, her cabin is occupied by her hunters when they stay at the camp.
 * Zoë Nightshade (former, deceased)
 * Thalia Grace

Hephaestus - Cabin 9

 * Charles Beckendorf (former, deceased)
 * Jake Mason (former, resigned)
 * Leo Valdez

Aphrodite - Cabin 10

 * Silena Beauregard (former, deceased)
 * Drew (former, resigned)
 * Piper McLean

Hermes - Cabin 11

 * Luke Castellan (former, deceased)
 * Connor Stoll and Travis Stoll

Dionysus - Cabin 12

 * Castor (former, deceased)
 * Pollux

Hades - Cabin 13

 * Nico di Angelo

Iris - Cabin 14

 * Butch

Hypnos - Cabin 15

 * Clovis

Hecate - Cabin 20

 * Lou Ellen