| Index | Lamar | Texas | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Lamar | Texas | National |
| Completed 8th grade | 86.9% | 79.3% | 84.3% |
| Completed high school | 86.9% | 77.8% | 83.0% |
| Completed some college | 47.7% | 57.3% | 59.4% |
| Completed associate degree | 19.2% | 34.9% | 38.5% |
| Completed bachelors | 17.4% | 28.1% | 30.3% |
| Completed masters | 7.8% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 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 Lamar. Using the proficiency score averages, the average test scores for Lamar, TX schools is n/a. The average student to teacher ratio is n/a. In Lamar, TX, an average of 86.9% of students have completed 8th grade and an average of 86.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Rockport, TX | 10,815 | 47% | 2.1% |
| Fulton, TX | 1,202 | 37% | 24.0% |
| Lamar, TX | 1,073 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Penn Valley, CA | 1,073 | 44% | 8.7% |
| St. George, KS | 1,072 | 59% | 21.9% |
| Lyndon, KS | 1,074 | 29% | 40.6% |
| Ship Bottom, NJ | 1,074 | 47% | 2.1% |
| Stevensville, MI | 1,074 | 62% | 28.1% |
| Lamar, TX | 1,073 | n/a |
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