📊 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 14 Rated Districts in San Joaquin County, CA
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Lammersville Joint Unified School District | Mountain House | 10/10 Excellent | 94th |
| #2 | Jefferson Elementary School District | Tracy | 9/10 Excellent | 84th |
| #3 | Oak View Union Elementary School District | Acampo | 9/10 Excellent | 82nd |
| #4 | Ripon Unified School District | Ripon | 9/10 Excellent | 81st |
| #5 | Escalon Unified School District | Escalon | 5/10 Average | 49th |
| #6 | Lincoln Unified School District | Stockton | 5/10 Average | 46th |
| #7 | Lodi Unified School District | Lodi | 5/10 Average | 42nd |
| #8 | Linden Unified School District | Linden | 5/10 Average | 41st |
| #9 | Tracy Unified School District | Tracy | 5/10 Average | 41st |
| #10 | New Hope Elementary School District | Thornton | 4/10 Below Average | 38th |
| #11 | Manteca Unified School District | Manteca | 4/10 Below Average | 33rd |
| #12 | New Jerusalem Elementary School District | Tracy | 3/10 Below Average | 23rd |
| #13 | Stockton Unified School District | Stockton | 2/10 Poor | 18th |
| #14 | Banta Unified School District | Tracy | 1/10 Poor | 7th |
Best School Districts in San Joaquin County, California (2026)
This page lists the 14 public school districts headquartered in San Joaquin 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 San Joaquin 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 San Joaquin County, California? ▼
Among the 14 rated districts in San Joaquin County, California, the highest-rated is Lammersville Joint Unified School District (Mountain House), rated 10/10 (Excellent) and in the 94th 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.