| Index | Lamar | South Carolina | National |
| Average Test Scores | 49% | 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 | Lamar | South Carolina | National |
| Completed 8th grade | 78.1% | 83.0% | 84.3% |
| Completed high school | 76.8% | 81.6% | 83.0% |
| Completed some college | 39.7% | 56.6% | 59.4% |
| Completed associate degree | 22.9% | 35.6% | 38.5% |
| Completed bachelors | 17.8% | 26.5% | 30.3% |
| Completed masters | 5.8% | 9.6% | 11.5% |
| Completed professional degree | 1.4% | 2.5% | 3.3% |
| Completed doctorate | 0.4% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Lamar. Using the proficiency score averages, the average test scores for Lamar, SC schools is 49%. The average student to teacher ratio is n/a. In Lamar, SC, an average of 78.1% of students have completed 8th grade and an average of 76.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Darlington, SC | 6,000 | 47% | 2.3% |
| Hartsville, SC | 7,559 | 42% | 12.2% |
| Bishopville, SC | 3,043 | 29% | 39.8% |
| Timmonsville, SC | 2,464 | 28% | 41.7% |
| Mayesville, SC | 674 | 27% | 43.8% |
| Lamar, SC | 1,123 | 49% | 2.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Cotter, AR | 1,123 | 48% | = 100 |
| Pasadena Hills, MO | 1,123 | 17% | 64.6% |
| Morrisonville, IL | 1,123 | 32% | 34.4% |
| Cairo, NE | 1,123 | 56% | 16.1% |
| Celeste, TX | 1,124 | 52% | 8.5% |
| Lamar, SC | 1,123 | 49% | 2.4% |
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