The Second Cohort is very similar to the First Cohort. This Cohort takes in the best campers with the best recommendation letters. It's nicknamed the "Pride of Camp Jupiter."
The Heroes of Olympus
The Son of Neptune
The Second Cohort is briefly mentioned. The cohort, along with the First Cohort, is defeated by the Fifth Cohort in the Roman War Games.
Known Members
| Cohorts | |
| First Cohort: | Octavian | Michael Kahale |
| Second Cohort: | Larry | Ida | Carl | Reza | Lynda |
| Third Cohort: | Hank |
| Fourth Cohort: | Leila | Claudia | Janice | Claudia's Father | Mimi |
| Fifth Cohort: | Dakota | Gwendolyn | Bobby | Jacob | Michael Varus | Jason Grace | Bryce Lawrence | Frank Zhang | Hazel Levesque | Percy Jackson | Lavinia Asimov | Thomas |