| Index | Thornton | Iowa | National |
| Average Test Scores | n/a | 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 | Thornton | Iowa | National |
| Completed 8th grade | 88.1% | 89.2% | 84.3% |
| Completed high school | 88.1% | 87.7% | 83.0% |
| Completed some college | 59.6% | 59.8% | 59.4% |
| Completed associate degree | 32.1% | 38.4% | 38.5% |
| Completed bachelors | 16.8% | 27.2% | 30.3% |
| Completed masters | 2.4% | 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 Thornton. Using the proficiency score averages, the average test scores for Thornton, IA schools is n/a. The average student to teacher ratio is n/a. In Thornton, IA, an average of 88.1% of students have completed 8th grade and an average of 88.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Garner, IA | 3,060 | 78% | 63.0% |
| Ventura, IA | 761 | 74% | 54.2% |
| Clear Lake, IA | 7,594 | 73% | 52.4% |
| Latimer, IA | 788 | 70% | 45.8% |
| Rockwell, IA | 871 | 67% | 39.6% |
| Thornton, IA | 473 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Fort Yukon, AK | 473 | 15% | 68.8% |
| Upsala, MN | 473 | 45% | 7.3% |
| Green Ridge, MO | 473 | 43% | 9.9% |
| Creal Springs, IL | 473 | 42% | 12.5% |
| Rudolph, WI | 473 | 47% | 2.1% |
| Thornton, IA | 473 | n/a |
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