| Index | Johnstonville | California | National |
| Average Test Scores | n/a | 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 | Johnstonville | California | National |
| Completed 8th grade | 94.3% | 81.1% | 84.3% |
| Completed high school | 94.3% | 79.8% | 83.0% |
| Completed some college | 76.8% | 61.5% | 59.4% |
| Completed associate degree | 34.1% | 39.8% | 38.5% |
| Completed bachelors | 16.1% | 32.0% | 30.3% |
| Completed masters | 8.4% | 11.9% | 11.5% |
| Completed professional degree | 3.7% | 3.9% | 3.3% |
| Completed doctorate | 0.4% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Johnstonville. Using the proficiency score averages, the average test scores for Johnstonville, CA schools is n/a. The average student to teacher ratio is n/a. In Johnstonville, CA, an average of 94.3% of students have completed 8th grade and an average of 94.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Susanville, CA | 14,922 | 40% | 17.5% |
| Litchfield, CA | 183 | 35% | 28.1% |
| Janesville, CA | 2,803 | 34% | 30.2% |
| Johnstonville, CA | 1,151 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Crenshaw, MS | 1,151 | 30% | 37.5% |
| Clarence, IA | 1,151 | 70% | 44.8% |
| Botkins, OH | 1,151 | 84% | 75.5% |
| Bellevue, MI | 1,152 | 28% | 41.1% |
| Rossville, IL | 1,152 | 20% | 59.4% |
| Johnstonville, CA | 1,151 | n/a |
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