| Index | San Geronimo | California | National |
| Average Test Scores | 51% | 43% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 8,308 | 79,221 |
| Total private schools | n/a | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |

| Index | San Geronimo | California | National |
| Completed 8th grade | 100.0% | 81.1% | 84.3% |
| Completed high school | 100.0% | 79.8% | 83.0% |
| Completed some college | 79.8% | 61.5% | 59.4% |
| Completed associate degree | 74.2% | 39.8% | 38.5% |
| Completed bachelors | 69.4% | 32.0% | 30.3% |
| Completed masters | 34.2% | 11.9% | 11.5% |
| Completed professional degree | 11.1% | 3.9% | 3.3% |
| Completed doctorate | 4.1% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in San Geronimo. Using the proficiency score averages, the average test scores for San Geronimo, CA schools is 51%. The average student to teacher ratio is n/a. In San Geronimo, CA, an average of 100.0% of students have completed 8th grade and an average of 100.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ross, CA | 2,548 | 83% | 71.9% |
| Tiburon, CA | 9,444 | 81% | 69.3% |
| Corte Madera, CA | 10,023 | 80% | 66.1% |
| Mill Valley, CA | 14,823 | 79% | 65.3% |
| San Anselmo, CA | 13,003 | 76% | 59.1% |
| San Geronimo, CA | 181 | 51% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Glacier View, AK | 181 | 50% | 4.2% |
| Frederick, SD | 180 | 60% | 25.0% |
| Elk Creek, CA | 182 | 38% | 21.9% |
| Geraldine, MT | 180 | 50% | 4.2% |
| Galt, MO | 180 | 43% | 11.5% |
| San Geronimo, CA | 181 | 51% | 6.3% |