Its member institutions are located in the eastern region of the San Francisco Bay Area, in the cities of Concord, Danville, San Ramon, Dublin, Pleasanton, and Livermore.
In the fall of 2016 the EBAL expanded to a 10 team league (De La Salle competing in boys sports & Carondelet in girls sports) by adding Dublin High School, and Dougherty Valley High School.
Also in 2018, the EBAL split its Football League into two "Divisions"; the Mountain Division (consisting of California, De La Salle, Foothill, San Ramon and Monte Vista) and the "Valley Division" (consisting of Amador Valley, Dougherty Valley, Dublin, Granada and Livermore).
In the fall of 2019 the EBAL expanded to a 11 team league by adding Clayton Valley Charter High School to the league, competing in the Mountain Division in football.
The league has 12 affiliated schools: Former members: It also fields 17 sports: Former EBAL Champions