Summary:
Zip code 81635 is served by a single high school, Grand Valley High School, which enrolls 293 students in grades 9 through 12 in Parachute, Colorado, with a student-teacher ratio of 14.6:1. The school is part of Grand Valley School District No. 16, which ranks near the bottom of Colorado districts, and because it is the only high school in the district, its performance figures are identical to the district's.
Academically, the school shows a mixed profile. In 2025–2026, 61% of 11th graders were proficient in SAT Reading and Writing, slightly above the state average of 60%, and up from 56% the prior year. However, only 50% of 9th and 10th graders met proficiency in PSAT Reading and Writing, well below the state's 65–66%. Mathematics is the most urgent concern: only 13% of 11th graders, 17% of 9th graders, and 18% of 10th graders were proficient in math, compared with 32–40% statewide. Science proficiency on the CMAS improved sharply from 6.4% to 15.5%, but still trails the state's 24.8%.
Graduation and attendance metrics also lag the state. The graduation rate is 80.2% versus 85.6% statewide, the dropout rate of 2.6% exceeds the state's 1.6%, and chronic absenteeism sits at 29.4%, slightly above the state's 28.4%. Roughly 61% of students qualify for free or reduced-price lunch, providing important context for these outcomes. The school's state ranking has slipped from the 35th percentile in 2023–2024 to the 22nd percentile in 2025–2026, even as reading scores improved, indicating the school is not keeping pace with statewide gains in math and science. For parents, Grand Valley High School offers a bright spot in reading and writing, but significant challenges remain in mathematics, science, and student retention.
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