| Index | Greenbriar | Glendale | California |
| Average Test Scores | n/a | 55% | 43% |
| Student/Teacher ratio | n/a | 20:1 | 20:1 |
| Total public schools | n/a | 23 | 8,308 |
| Total private schools | n/a | 23 | 3,438 |
| Total post-secondary schools | n/a | 7 | 1,085 |
| Index | Greenbriar | Glendale | California |
| Completed 8th grade | 96.1% | 85.2% | 81.1% |
| Completed high school | 95.7% | 84.2% | 79.8% |
| Completed some college | 85.9% | 66.1% | 61.5% |
| Completed associate degree | 70.6% | 47.6% | 39.8% |
| Completed bachelors | 63.4% | 39.0% | 32.0% |
| Completed masters | 29.9% | 13.7% | 11.9% |
| Completed professional degree | 14.7% | 4.6% | 3.9% |
| Completed doctorate | 2.4% | 1.6% | 1.6% |
| City | Population | Avg. Test Scores | National Avg. |
| San Marino, CA | 13,020 | 88% | 84.1% |
| La Cañada Flintridge, CA | 20,078 | 87% | 82.0% |
| South Pasadena, CA | 25,478 | 82% | 70.2% |
| Arcadia, CA | 57,053 | 74% | 53.2% |
| La Crescenta-Montrose, CA | 20,171 | 72% | 49.2% |
| Glendale, CA | 199,357 | 55% | 13.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Aurora, IL | 199,326 | 29% | 39.6% |
| Grand Rapids, MI | 199,417 | 38% | 21.7% |
| Amarillo, TX | 199,225 | 48% | 1.0% |
| Montgomery, AL | 199,054 | 33% | 30.3% |
| Huntington Beach, CA | 199,778 | 64% | 33.6% |
| Glendale, CA | 199,357 | 55% | 13.7% |
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