| Index | Thornburg | Iowa | National |
| Average Test Scores | 62% | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Thornburg | Iowa | National |
| Completed 8th grade | 91.5% | 89.2% | 84.3% |
| Completed high school | 91.5% | 87.7% | 83.0% |
| Completed some college | 57.4% | 59.8% | 59.4% |
| Completed associate degree | 46.8% | 38.4% | 38.5% |
| Completed bachelors | 14.9% | 27.2% | 30.3% |
| Completed masters | 0.0% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 2.7% | 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 Thornburg. Using the proficiency score averages, the average test scores for Thornburg, IA schools is 62%. The average student to teacher ratio is n/a. In Thornburg, IA, an average of 91.5% of students have completed 8th grade and an average of 91.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Montezuma, IA | 1,490 | 80% | 66.0% |
| Sigourney, IA | 1,909 | 80% | 65.6% |
| North English, IA | 957 | 67% | 39.6% |
| Thornburg, IA | 55 | 62% | 28.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Wood, SD | 55 | 50% | 4.2% |
| Leggett, CA | 56 | 25% | 47.9% |
| Perryville, AK | 54 | 50% | 4.2% |
| Catlett, VA | 54 | 70% | 44.8% |
| Shageluk, AK | 56 | 50% | 4.2% |
| Thornburg, IA | 55 | 62% | 28.1% |
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