| Index | Calvert | Texas | National |
| Average Test Scores | 25% | 47% | 48% |
| Student/Teacher ratio | 11:1 | 14:1 | 16:1 |
| Total public schools | 3 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Calvert | Texas | National |
| Completed 8th grade | 79.4% | 79.3% | 84.3% |
| Completed high school | 76.9% | 77.8% | 83.0% |
| Completed some college | 45.4% | 57.3% | 59.4% |
| Completed associate degree | 16.3% | 34.9% | 38.5% |
| Completed bachelors | 13.0% | 28.1% | 30.3% |
| Completed masters | 2.3% | 9.6% | 11.5% |
| Completed professional degree | 0.3% | 2.6% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Calvert. Using the proficiency score averages, the average test scores for Calvert, TX schools is 25%. The average student to teacher ratio is 11:1. In Calvert, TX, an average of 79.4% of students have completed 8th grade and an average of 76.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Franklin, TX | 1,585 | 67% | 39.9% |
| Bremond, TX | 981 | 53% | 10.4% |
| Hearne, TX | 4,421 | 26% | 45.8% |
| Calvert, TX | 1,479 | 25% | 49.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Manly, IA | 1,480 | 78% | 61.5% |
| Akron, IA | 1,478 | 82% | 71.2% |
| Park River, ND | 1,478 | 55% | 14.1% |
| Island Heights, NJ | 1,480 | 77% | 60.4% |
| Tarkio, MO | 1,481 | 45% | 7.3% |
| Calvert, TX | 1,479 | 25% | 49.0% |
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