📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (CAASPP 2023–24), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 11 Rated Districts in Tuolumne County, CA
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Belleview Elementary School District | Sonora | 9/10 Excellent | 86th |
| #2 | Summerville Union High School District | Tuolumne | 8/10 Good | 79th |
| #3 | Soulsbyville Elementary School District | Soulsbyville | 8/10 Good | 70th |
| #4 | Twain Harte School District | Twain Harte | 7/10 Good | 69th |
| #5 | Sonora Union High School District | Sonora | 6/10 Average | 53rd |
| #6 | Sonora Elementary School District | Sonora | 6/10 Average | 51st |
| #7 | Columbia Union Elementary School District | Columbia | 5/10 Average | 46th |
| #8 | Summerville Elementary School District | Tuolumne | 5/10 Average | 44th |
| #9 | Curtis Creek Elementary School District | Sonora | 3/10 Below Average | 27th |
| #10 | Jamestown Elementary School District | Jamestown | 3/10 Below Average | 27th |
| #11 | Big Oak Flat-Groveland Unified School District | Groveland | 3/10 Below Average | 22nd |
Best School Districts in Tuolumne County, California (2026)
This page lists the 11 public school districts headquartered in Tuolumne County, California that have a SchoolDistrictFinder rating, scored using CAASPP 2023–24 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in California, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Tuolumne County may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in Tuolumne County, California? ▼
Among the 11 rated districts in Tuolumne County, California, the highest-rated is Belleview Elementary School District (Sonora), rated 9/10 (Excellent) and in the 86th percentile of California districts on CAASPP 2023–24 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (CAASPP 2023–24), percentile-ranked against all rated districts in California and converted to a 1–10 scale. Full methodology here.