Summary:
Up-Island Regional is a small Massachusetts district serving roughly 390 students across two elementary schools: West Tisbury Elementary, which spans PK–8 with 321 students, and Chilmark Elementary, which serves K–5 with 69 students. The district as a whole ranks 66th of 351 statewide, placing it in the 81st percentile with a 4-star rating.
Chilmark Elementary is the clear standout. It ranked 24th of 899 schools in 2025–2026 (97th percentile, 5 stars) and 12th of 906 in 2024–2025 (99th percentile). Its all-grade proficiency rates were 75.68% in English language arts, 67.57% in math, and 83.33% in science — far above state averages of roughly 40% in each subject. Its 5th graders scored 83.33% in ELA, 75% in math, and 83.33% in science.
West Tisbury Elementary is larger and improving, climbing from the 52nd percentile in 2023–2024 to the 65th in 2025–2026 (3 stars). Its all-grade scores — 49.16% in ELA, 51.68% in math, and 50.63% in science — exceed state averages but trail both the district and Chilmark Elementary. Grade 5 is its weak point: ELA was 24.32% there versus 83.33% at Chilmark Elementary, with similar gaps in math and science. Grades 6–8 are solid, including 64.44% in 8th-grade math and 58.14% in 8th-grade science. Both schools report a 6.8 student-teacher ratio; Chilmark Elementary's 2020–2021 per-pupil spending was $31,454 versus $29,119 at West Tisbury Elementary. Note that Chilmark Elementary's small enrollment makes its percentages swing more year to year, and its all-grade figures cover fewer grades than West Tisbury Elementary's.
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