| Index | Johnstown | Colorado | National |
| Average Test Scores | 39% | 39% | 48% |
| Student/Teacher ratio | 17:1 | 17:1 | 16:1 |
| Total public schools | 2 | 1,426 | 79,221 |
| Total private schools | n/a | 384 | 24,874 |
| Total post-secondary schools | n/a | 138 | 7,963 |
| Index | Johnstown | Colorado | National |
| Completed 8th grade | 91.9% | 87.9% | 84.3% |
| Completed high school | 91.9% | 87.1% | 83.0% |
| Completed some college | 70.9% | 69.3% | 59.4% |
| Completed associate degree | 44.4% | 47.1% | 38.5% |
| Completed bachelors | 32.6% | 38.7% | 30.3% |
| Completed masters | 7.8% | 14.3% | 11.5% |
| Completed professional degree | 1.5% | 3.9% | 3.3% |
| Completed doctorate | 0.5% | 1.6% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Johnstown. Using the proficiency score averages, the average test scores for Johnstown, CO schools is 39%. The average student to teacher ratio is 17:1. In Johnstown, CO, an average of 91.9% of students have completed 8th grade and an average of 91.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Timnath, CO | 1,964 | 64% | 32.3% |
| Berthoud, CO | 8,879 | 59% | 22.1% |
| Mead, CO | 5,085 | 57% | 18.2% |
| Eaton, CO | 5,858 | 51% | 6.9% |
| Windsor, CO | 24,324 | 50% | 4.8% |
| Johnstown, CO | 14,655 | 39% | 18.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Hawaiian Gardens, CA | 14,656 | 37% | 23.3% |
| Johnson City, NY | 14,660 | 54% | 12.8% |
| Lindenhurst, IL | 14,637 | 51% | 6.3% |
| Hickory Hills, IL | 14,635 | 63% | 30.2% |
| Pineville, LA | 14,677 | 69% | 44.4% |
| Johnstown, CO | 14,655 | 39% | 18.8% |
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