| Index | Karns City | Pennsylvania | National |
| Average Test Scores | 64% | 55% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 2,563 | 79,221 |
| Total private schools | n/a | 1,626 | 24,874 |
| Total post-secondary schools | n/a | 406 | 7,963 |
| Index | Karns City | Pennsylvania | National |
| Completed 8th grade | 77.5% | 86.9% | 84.3% |
| Completed high school | 74.6% | 85.6% | 83.0% |
| Completed some college | 21.1% | 53.6% | 59.4% |
| Completed associate degree | 10.6% | 37.4% | 38.5% |
| Completed bachelors | 3.5% | 29.3% | 30.3% |
| Completed masters | 0.0% | 11.5% | 11.5% |
| Completed professional degree | 0.0% | 3.3% | 3.3% |
| Completed doctorate | 0.0% | 1.4% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Karns City. Using the proficiency score averages, the average test scores for Karns City, PA schools is 64%. The average student to teacher ratio is n/a. In Karns City, PA, an average of 77.5% of students have completed 8th grade and an average of 74.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Butler, PA | 13,008 | 61% | 27.3% |
| Kittanning, PA | 3,751 | 57% | 19.1% |
| West Sunbury, PA | 242 | 56% | 17.2% |
| Harrisville, PA | 969 | 50% | 3.1% |
| Chicora, PA | 1,046 | 49% | 1.0% |
| Karns City, PA | 208 | 64% | 33.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Marietta, MS | 208 | 72% | 50.0% |
| Okabena, MN | 208 | 35% | 27.1% |
| White Shield, ND | 208 | 25% | 48.6% |
| St. Regis, MT | 207 | 47% | 2.8% |
| Kaltag, AK | 209 | 50% | 4.2% |
| Karns City, PA | 208 | 64% | 33.3% |
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