| Index | Fort Mill | South Carolina | National |
| Average Test Scores | 72% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 16:1 | 16:1 |
| Total public schools | 10 | 932 | 79,221 |
| Total private schools | 3 | 369 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |


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| Index | Fort Mill | South Carolina | National |
| Completed 8th grade | 89.1% | 83.0% | 84.3% |
| Completed high school | 88.8% | 81.6% | 83.0% |
| Completed some college | 68.0% | 56.6% | 59.4% |
| Completed associate degree | 47.8% | 35.6% | 38.5% |
| Completed bachelors | 36.0% | 26.5% | 30.3% |
| Completed masters | 9.7% | 9.6% | 11.5% |
| Completed professional degree | 1.8% | 2.5% | 3.3% |
| Completed doctorate | 1.2% | 1.1% | 1.3% |
There are a total of 10 public schools, 3 private schools and n/a post-secondary schools in Fort Mill. Using the proficiency score averages, the average test scores for Fort Mill, SC schools is 72%. The average student to teacher ratio is 15:1. In Fort Mill, SC, an average of 89.1% of students have completed 8th grade and an average of 88.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Marvin, NC | 6,935 | 82% | 70.8% |
| Tega Cay, SC | 11,216 | 78% | 61.5% |
| Waxhaw, NC | 16,569 | 67% | 39.5% |
| Matthews, NC | 33,739 | 67% | 38.5% |
| Stallings, NC | 16,319 | 62% | 29.2% |
| Fort Mill, SC | 20,703 | 72% | 49.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Tukwila, WA | 20,710 | 52% | 9.1% |
| Charleston, IL | 20,693 | 27% | 44.8% |
| Rio Rico, AZ | 20,721 | 32% | 33.9% |
| Shelby, NC | 20,722 | 41% | 15.6% |
| South St. Paul, MN | 20,723 | 42% | 13.0% |
| Fort Mill, SC | 20,703 | 72% | 49.1% |