| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Millbrae Elementary School District | Millbrae | 10/10 Excellent · 90th pct | 2,075 | 5 | K–8 | 1 |
| Sequoia Union High School District | Menlo Park | 9/10 Excellent · 86th pct | 8,599 | 6 | 9–12 | 8 |
| San Mateo Union High School District | Burlingame | 9/10 Excellent · 85th pct | 8,942 | 7 | 9–12 | 5 |
| San Mateo-Foster City School District | San Mateo | 8/10 Good · 78th pct | 10,067 | 22 | K–8 | 1 |
| South San Francisco Unified School District | South San Francisco | 7/10 Good · 66th pct | 7,868 | 17 | K–12 | 2 |
| Jefferson Union High School District | Brisbane | 7/10 Good · 65th pct | 3,884 | 5 | 9–12 | 3 |
| Redwood City Elementary School District | Redwood City | 6/10 Average · 59th pct | 6,346 | 12 | K–8 | 1 |
| La Honda-Pescadero Unified School District | La Honda | 6/10 Average · 58th pct | 258 | 3 | K–12 | 3 |
| Jefferson Elementary School District | Daly City | 6/10 Average · 56th pct | 4,956 | 14 | K–12 | 1 |
| Cabrillo Unified School District | El Granada | 6/10 Average · 51st pct | 2,748 | 7 | K–12 | 5 |
How San Mateo County compares
Together they enroll 55,743 students across 98 schools. The largest is San Mateo-Foster City School District with 10,067 students. Districts here average 7.4/10, above the California average of 5.5/10. Ratings range from 6/10 to 10/10.
School Districts in San Mateo County, California
San Mateo County has 10 public school districts covering 30 zip codes. The top-rated district in San Mateo County is Millbrae Elementary School District (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (CAASPP 2023–24), ranked against all districts in California. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.