| Index | Grass Valley | California | National |
| Average Test Scores | 47% | 43% | 48% |
| Student/Teacher ratio | 18:1 | 20:1 | 16:1 |
| Total public schools | 28 | 8,308 | 79,221 |
| Total private schools | 4 | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | Grass Valley | California | National |
| Completed 8th grade | 87.0% | 81.1% | 84.3% |
| Completed high school | 86.5% | 79.8% | 83.0% |
| Completed some college | 66.1% | 61.5% | 59.4% |
| Completed associate degree | 35.0% | 39.8% | 38.5% |
| Completed bachelors | 24.6% | 32.0% | 30.3% |
| Completed masters | 10.3% | 11.9% | 11.5% |
| Completed professional degree | 3.4% | 3.9% | 3.3% |
| Completed doctorate | 0.4% | 1.6% | 1.3% |
There are a total of 28 public schools, 4 private schools and n/a post-secondary schools in Grass Valley. Using the proficiency score averages, the average test scores for Grass Valley, CA schools is 47%. The average student to teacher ratio is 18:1. In Grass Valley, CA, an average of 87.0% of students have completed 8th grade and an average of 86.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Washington, CA | 137 | 50% | 4.2% |
| Alta, CA | 703 | 50% | 4.2% |
| Penn Valley, CA | 1,073 | 44% | 8.7% |
| Colfax, CA | 2,258 | 43% | 11.1% |
| Nevada City, CA | 3,145 | 42% | 13.5% |
| Grass Valley, CA | 12,817 | 47% | 2.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Herrin, IL | 12,806 | 36% | 24.7% |
| Cedar Lake, IN | 12,830 | 60% | 25.0% |
| Joppatowne, MD | 12,833 | 28% | 42.5% |
| Jacksonville, AL | 12,796 | 59% | 23.4% |
| Lindsay, CA | 12,793 | 40% | 17.7% |
| Grass Valley, CA | 12,817 | 47% | 2.7% |
Here are the best places to live in California
Check out the 10 safest cities in California
Most Dangerous Cities In The US
These are the 10 cheapest cities in California