| Index | Idalou | Texas | National |
| Average Test Scores | 65% | 47% | 48% |
| Student/Teacher ratio | 10:1 | 14:1 | 16:1 |
| Total public schools | 4 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Idalou | Texas | National |
| Completed 8th grade | 78.2% | 79.3% | 84.3% |
| Completed high school | 77.0% | 77.8% | 83.0% |
| Completed some college | 45.9% | 57.3% | 59.4% |
| Completed associate degree | 24.7% | 34.9% | 38.5% |
| Completed bachelors | 19.0% | 28.1% | 30.3% |
| Completed masters | 5.9% | 9.6% | 11.5% |
| Completed professional degree | 1.6% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 4 public schools, n/a private schools and n/a post-secondary schools in Idalou. Using the proficiency score averages, the average test scores for Idalou, TX schools is 65%. The average student to teacher ratio is 10:1. In Idalou, TX, an average of 78.2% of students have completed 8th grade and an average of 77.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Petersburg, TX | 1,034 | 52% | 8.3% |
| Abernathy, TX | 3,408 | 51% | 5.9% |
| New Deal, TX | 1,058 | 46% | 4.2% |
| Lubbock, TX | 257,013 | 43% | 11.3% |
| Lorenzo, TX | 1,097 | 35% | 28.1% |
| Idalou, TX | 1,814 | 65% | 35.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Calhoun Falls, SC | 1,814 | 41% | 15.1% |
| Lewisburg, OH | 1,813 | 65% | 34.4% |
| Pierre Part, LA | 1,815 | 86% | 79.2% |
| Jenkins, KY | 1,815 | 36% | 26.0% |
| Canyonville, OR | 1,812 | 37% | 22.9% |
| Idalou, TX | 1,814 | 65% | 35.1% |
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