Escondido Charter High School (colloquially referred to as Charter and ECHS) is an independent, co-educational, college preparatory day school in Escondido, California, for grades 9–12.

Since then, the student population has grown to almost 400 in the traditional preparatory program, with over 500 students attending the independent learning program.

A Charter education is grounded in a classical "back to basics learning," and the importance of pupil-faculty intellectual discourse.

Students must complete and pass the California High School Exit Exam, in addition to a final senior thesis that must be sufficiently defended in front of a committee for review.

Recent Charter graduates have matriculated at the following schools: