Glen Rose Independent School District  Glen Rose Independent School District is a public school district based in Glen Rose, Texas (United States). Glen Rose ISD covers most of Somervell County and includes the unincorporated communities of Nemo and Rainbow. In 2009, the school district was rated "academically acceptable" by the Texas Education Agency. Students in Glen Rose outperform local region and statewide averages on standardized tests. In 2017-2018 State of Texas Assessments of Academic Readiness (STAAR) results, 85% of students in Brock ISD met Approaches Grade Level standards, compared with 79% in Region 11 and 77% in the state of Texas. The average SAT score of the class of 2017 was 1052, and the average ACT score was 21.0. In the 2017-2018 school year, the school district had a total of 1,803 students, ranging from pre-kindergarten through grade 12. The class of 2017 included 106 graduates; the annual drop-out rate across grades 9-12 was reported as 0.0%. As of the 2017-2018 school year, the ethnic distribution of the school district was 63.9% White, 30.4% Hispanic, 0.6% African American, 1.6% Asian, 0.7% American Indian, 0.1% Pacific Islander, and 2.7% from two or more races. Economically disadvantaged students made up 41.5% of the student body.