| Index | Porterville | California | National |
| Average Test Scores | 32% | 43% | 48% |
| Student/Teacher ratio | 20:1 | 20:1 | 16:1 |
| Total public schools | 29 | 8,308 | 79,221 |
| Total private schools | 2 | 3,438 | 24,874 |
| Total post-secondary schools | 1 | 1,085 | 7,963 |
| Index | Porterville | California | National |
| Completed 8th grade | 67.9% | 81.1% | 84.3% |
| Completed high school | 63.1% | 79.8% | 83.0% |
| Completed some college | 39.4% | 61.5% | 59.4% |
| Completed associate degree | 17.4% | 39.8% | 38.5% |
| Completed bachelors | 10.3% | 32.0% | 30.3% |
| Completed masters | 3.6% | 11.9% | 11.5% |
| Completed professional degree | 1.1% | 3.9% | 3.3% |
| Completed doctorate | 0.2% | 1.6% | 1.3% |
There are a total of 29 public schools, 2 private schools and 1 post-secondary schools in Porterville. Using the proficiency score averages, the average test scores for Porterville, CA schools is 32%. The average student to teacher ratio is 20:1. In Porterville, CA, an average of 67.9% of students have completed 8th grade and an average of 63.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Springville, CA | 567 | 48% | = 100 |
| Strathmore, CA | 3,641 | 40% | 16.9% |
| Lindsay, CA | 12,793 | 40% | 17.7% |
| Terra Bella, CA | 2,389 | 36% | 25.0% |
| Earlimart, CA | 8,908 | 30% | 37.8% |
| Porterville, CA | 59,056 | 32% | 32.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Springfield, OH | 58,957 | 49% | 1.3% |
| San Rafael, CA | 59,178 | 48% | 1.0% |
| St. Clair Shores, MI | 59,184 | 42% | 13.3% |
| Brookline, MA | 59,223 | 76% | 58.0% |
| Bartlett, TN | 59,252 | 48% | 0.2% |
| Porterville, CA | 59,056 | 32% | 32.9% |
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