 Among Castleberry's class of 2014, the average SAT score was 1282, and the average ACT score was 17.6 .Across all grades at the school, the STAAR Percent at Phase-in Satisfactory Standard or Above for 2014-15 was 65% for reading, 76% for mathematics, 88% for science, and 89% for social studies.Texas Education Agency gave Castleberry High School a B, 85 out of 100, in the question of "How much better did the students perform at this school?"