Schools in 93257 — Porterville, California: 27 schools. Average score 6.0 points below the state. Here is what that number does — and doesn't — tell you.
93257 has 27 ranked schools in Porterville, averaging a Scope Score of 32.9/100 — 6.0 points below the state average of 38.9 (CDE CAASPP 2025). Scores range from 12.1 to 53.0, a 40.8-point spread.
How 93257 schools perform
The top-ranked school is Monache High with a Scope Score of 53 and 16.1% of students exceeding standard.
Cohort growth — the returning cohort, 2023 G3 → 2025 G5 — averages +74 scale-score points across 22 schools in 93257 with a large enough tested cohort. Scale scores rise with grade for nearly every school, so this describes the cohort's trajectory, not a ranking against other zip codes — worth examining school by school.
Chronic absenteeism across 93257 averages 16.8%, near the state average of 17.9%. CDE CAASPP 2025.
How 93257 compares to nearby zip codes
| Zip | City | Schools | Avg Score | vs 93257 |
|---|---|---|---|---|
| 93257 | Porterville | 27 | Developing 32.9/100 | — |
| 93252 | Maricopa | 5 | Needs Support 25.0/100 | -7.8 |
| 93263 | Shafter | 5 | Developing 36.8/100 | +3.9 |
| 93250 | McFarland | 4 | Developing 34.1/100 | +1.3 |
| 93249 | Lost Hills | 3 | Developing 32.6/100 | -0.3 |
| 93247 | Lindsay | 7 | Developing 34.3/100 | +1.4 |
Source: CDE CAASPP 2025, analyzed by SchoolScope.
School archetypes in 93257
Hidden gems: 9 schools in 93257 are classified as On the Rise (8) or Growth Engine — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
All schools in 93257
ranked by Scope Score · 2024–25 CAASPP
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Monache High Porterville Unified Building Momentum | 16.1% | Solid 53/100 |
| 2 | Porterville High Porterville Unified Building Momentum | 15.8% | Developing 49/100 |
| 3 | Porterville Military Academy Porterville Unified Building Momentum | 17.1% | Developing 49/100 |
| 4 | Woodville Elementary Woodville Union Elementary Growth Engine | 18.7% | Developing 48/100 |
| 5 | Santa Fe Elementary Porterville Unified Culture First | 26.4% | Developing 47/100 |
| 6 | Granite Hills High Porterville Unified Building Momentum | 11.1% | Developing 46/100 |
| 7 | Summit Charter Academy Burton Elementary On the Rise | 18.4% | Developing 42/100 |
| 8 | John J. Doyle Elementary Porterville Unified On the Rise | 9.5% | Developing 41/100 |
| 9 | Hope Elementary Hope Elementary Culture First | 16.4% | Developing 40/100 |
| 10 | Monarch River Academy Alta Vista Elementary On the Rise | 13.9% | Developing 39/100 |
| 11 | Pioneer Middle Porterville Unified On the Rise | 9.6% | Developing 39/100 |
| 12 | Westfield Elementary Porterville Unified On the Rise | 13.4% | Developing 38/100 |
| 13 | Vandalia Elementary Porterville Unified On the Rise | 15.3% | Developing 36/100 |
| 14 | Oak Grove Elementary Burton Elementary On the Rise | 10.3% | Developing 33/100 |
| 15 | Olive Street Elementary Porterville Unified Culture First | 19.4% | Developing 31/100 |
| 16 | Jim Maples Academy Burton Elementary On the Rise | 7.9% | Developing 31/100 |
| 17 | William R. Buckley Elementary Burton Elementary Building Momentum | 8.7% | Needs Support 29/100 |
| 18 | Monte Vista Elementary Porterville Unified Building Momentum | 9.2% | Needs Support 27/100 |
| 19 | Los Robles Elementary Porterville Unified Building Momentum | 9.2% | Needs Support 27/100 |
| 20 | Roche Elementary Porterville Unified Building Momentum | 9.1% | Needs Support 27/100 |
| 21 | Rockford Elementary Rockford Elementary Culture First | 6.1% | Needs Support 27/100 |
| 22 | Burton Elementary Burton Elementary Building Momentum | 13.0% | Needs Support 23/100 |
| 23 | West Putnam Elementary Porterville Unified Culture First | 9.7% | Needs Support 22/100 |
| 24 | Belleview Elementary Porterville Unified Building Momentum | 8.4% | Needs Support 19/100 |
| 25 | Butterfield Charter Porterville Unified Building Momentum | 2.9% | Needs Support 18/100 |
| 26 | Citrus High Porterville Unified continuation high school | 1.0% | Needs Support 16/100 |
| 27 | Alta Vista Elementary Alta Vista Elementary Building Momentum | 3.0% | Needs Support 12/100 |
| 28 | Pleasant View Elementary Pleasant View Elementary Building Momentum | 1.3% | Needs Support 12/100 |
Schools in 93257 on the map
Data source: California Department of Education · CAASPP 2024-25 · Methodology
Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.
Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology