| Index | Winnsboro Mills | South Carolina | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 932 | 79,221 |
| Total private schools | n/a | 369 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Winnsboro Mills | South Carolina | National |
| Completed 8th grade | 56.0% | 83.0% | 84.3% |
| Completed high school | 53.3% | 81.6% | 83.0% |
| Completed some college | 22.0% | 56.6% | 59.4% |
| Completed associate degree | 9.8% | 35.6% | 38.5% |
| Completed bachelors | 8.9% | 26.5% | 30.3% |
| Completed masters | 1.4% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Winnsboro Mills. Using the proficiency score averages, the average test scores for Winnsboro Mills, SC schools is n/a. The average student to teacher ratio is n/a. In Winnsboro Mills, SC, an average of 56.0% of students have completed 8th grade and an average of 53.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Blythewood, SC | 3,646 | 63% | 30.6% |
| Ridgeway, SC | 294 | 42% | 12.5% |
| Winnsboro, SC | 3,208 | 39% | 18.9% |
| Great Falls, SC | 1,806 | 32% | 33.9% |
| Winnsboro Mills, SC | 2,099 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Oakland, MD | 2,099 | 38% | 21.7% |
| Arnold, CA | 2,099 | 50% | 3.1% |
| Gurdon, AR | 2,099 | 26% | 46.2% |
| Slater-Marietta, SC | 2,098 | 52% | 8.3% |
| Richgrove, CA | 2,098 | 17% | 65.6% |
| Winnsboro Mills, SC | 2,099 | n/a |
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