| Index | Lexington | Tennessee | National |
| Average Test Scores | 40% | 35% | 48% |
| Student/Teacher ratio | n/a | n/a | 16:1 |
| Total public schools | 7 | 1,390 | 79,221 |
| Total private schools | 2 | 430 | 24,874 |
| Total post-secondary schools | 1 | 189 | 7,963 |
| Index | Lexington | Tennessee | National |
| Completed 8th grade | 72.5% | 82.0% | 84.3% |
| Completed high school | 70.1% | 79.9% | 83.0% |
| Completed some college | 45.2% | 53.2% | 59.4% |
| Completed associate degree | 24.0% | 32.2% | 38.5% |
| Completed bachelors | 16.7% | 25.4% | 30.3% |
| Completed masters | 5.0% | 9.3% | 11.5% |
| Completed professional degree | 1.0% | 2.8% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of 7 public schools, 2 private schools and 1 post-secondary schools in Lexington. Using the proficiency score averages, the average test scores for Lexington, TN schools is 40%. The average student to teacher ratio is n/a. In Lexington, TN, an average of 72.5% of students have completed 8th grade and an average of 70.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Scotts Hill, TN | 1,320 | 51% | 5.2% |
| Henderson, TN | 6,323 | 43% | 9.6% |
| Clarksburg, TN | 918 | 42% | 12.5% |
| Lexington, TN | 7,838 | 40% | 16.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Carnegie, PA | 7,839 | 53% | 9.4% |
| Olivette, MO | 7,837 | 70% | 44.8% |
| Etowah, NC | 7,840 | 61% | 26.0% |
| Ashland, WI | 7,841 | 35% | 27.8% |
| Brevard, NC | 7,841 | 45% | 5.9% |
| Lexington, TN | 7,838 | 40% | 16.5% |
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