| Index | Greenhorn | 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 | Greenhorn | California | National |
| Completed 8th grade | 85.6% | 81.1% | 84.3% |
| Completed high school | 85.6% | 79.8% | 83.0% |
| Completed some college | 71.7% | 61.5% | 59.4% |
| Completed associate degree | 29.4% | 39.8% | 38.5% |
| Completed bachelors | 20.3% | 32.0% | 30.3% |
| Completed masters | 11.8% | 11.9% | 11.5% |
| Completed professional degree | 2.1% | 3.9% | 3.3% |
| Completed doctorate | 0.0% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Greenhorn. Using the proficiency score averages, the average test scores for Greenhorn, CA schools is n/a. The average student to teacher ratio is n/a. In Greenhorn, CA, an average of 85.6% of students have completed 8th grade and an average of 85.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Quincy, CA | 1,706 | 42% | 13.3% |
| Greenhorn, CA | 202 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Welch, TX | 202 | 25% | 49.0% |
| Cheraw, CO | 202 | 30% | 38.5% |
| Garden Grove, IA | 203 | 70% | 45.8% |
| Lake Leelanau, MI | 203 | 30% | 37.5% |
| Cainsville, MO | 203 | 35% | 27.1% |
| Greenhorn, CA | 202 | n/a |
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