| Index | Lamar | Missouri | National |
| Average Test Scores | 38% | 44% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 5 | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Lamar | Missouri | National |
| Completed 8th grade | 86.1% | 86.0% | 84.3% |
| Completed high school | 81.4% | 84.2% | 83.0% |
| Completed some college | 45.8% | 57.7% | 59.4% |
| Completed associate degree | 20.8% | 35.2% | 38.5% |
| Completed bachelors | 15.0% | 27.6% | 30.3% |
| Completed masters | 4.9% | 10.4% | 11.5% |
| Completed professional degree | 1.5% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 5 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, MO schools is 38%. The average student to teacher ratio is 15:1. In Lamar, MO, an average of 86.1% of students have completed 8th grade and an average of 81.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sheldon, MO | 408 | 43% | 11.5% |
| Jasper, MO | 950 | 41% | 15.1% |
| Golden City, MO | 639 | 35% | 27.1% |
| Liberal, MO | 674 | 31% | 34.7% |
| Bronaugh, MO | 193 | 21% | 55.7% |
| Lamar, MO | 4,284 | 38% | 20.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Summerville, GA | 4,283 | 26% | 45.6% |
| Medford, WI | 4,285 | 39% | 18.0% |
| Alvarado, TX | 4,282 | 46% | 5.0% |
| Plymouth, NH | 4,281 | 56% | 16.0% |
| Ashville, OH | 4,281 | 78% | 62.5% |
| Lamar, MO | 4,284 | 38% | 20.5% |
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