| Index | Westminster | California | National |
| Average Test Scores | 56% | 43% | 48% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 18 | 8,308 | 79,221 |
| Total private schools | 6 | 3,438 | 24,874 |
| Total post-secondary schools | 3 | 1,085 | 7,963 |
| Index | Westminster | California | National |
| Completed 8th grade | 75.9% | 81.1% | 84.3% |
| Completed high school | 74.4% | 79.8% | 83.0% |
| Completed some college | 53.5% | 61.5% | 59.4% |
| Completed associate degree | 31.6% | 39.8% | 38.5% |
| Completed bachelors | 22.8% | 32.0% | 30.3% |
| Completed masters | 6.2% | 11.9% | 11.5% |
| Completed professional degree | 2.1% | 3.9% | 3.3% |
| Completed doctorate | 0.9% | 1.6% | 1.3% |
There are a total of 18 public schools, 6 private schools and 3 post-secondary schools in Westminster. Using the proficiency score averages, the average test scores for Westminster, CA schools is 56%. The average student to teacher ratio is 21:1. In Westminster, CA, an average of 75.9% of students have completed 8th grade and an average of 74.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Los Alamitos, CA | 11,521 | 82% | 70.1% |
| Laguna Beach, CA | 22,991 | 80% | 67.2% |
| Seal Beach, CA | 24,268 | 75% | 55.2% |
| Irvine, CA | 272,694 | 73% | 51.5% |
| Newport Beach, CA | 86,694 | 72% | 50.9% |
| Westminster, CA | 90,857 | 56% | 15.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Bellingham, WA | 90,821 | 51% | 5.4% |
| Santa Barbara, CA | 90,911 | 47% | 2.0% |
| Kirkland, WA | 91,146 | 76% | 58.2% |
| San Leandro, CA | 90,489 | 34% | 29.0% |
| Carson, CA | 91,354 | 42% | 12.0% |
| Westminster, CA | 90,857 | 56% | 15.9% |
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