| Index | Udell | 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 | Udell | Iowa | National |
| Completed 8th grade | 87.9% | 89.2% | 84.3% |
| Completed high school | 87.9% | 87.7% | 83.0% |
| Completed some college | 66.7% | 59.8% | 59.4% |
| Completed associate degree | 12.1% | 38.4% | 38.5% |
| Completed bachelors | 9.1% | 27.2% | 30.3% |
| Completed masters | 9.1% | 8.7% | 11.5% |
| Completed professional degree | 9.1% | 2.7% | 3.3% |
| Completed doctorate | 6.1% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Udell. Using the proficiency score averages, the average test scores for Udell, IA schools is n/a. The average student to teacher ratio is n/a. In Udell, IA, an average of 87.9% of students have completed 8th grade and an average of 87.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Centerville, IA | 5,433 | 70% | 44.8% |
| Blakesburg, IA | 232 | 67% | 39.6% |
| Moravia, IA | 603 | 60% | 24.0% |
| Moulton, IA | 640 | 56% | 16.7% |
| Udell, IA | 37 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Rosebud, MT | 36 | 50% | 4.2% |
| Baker, NV | 36 | 50% | 4.2% |
| Mutual, OK | 36 | 25% | 47.9% |
| Chignik Lagoon, AK | 35 | 50% | 4.2% |
| Stony River, AK | 39 | 50% | 4.2% |
| Udell, IA | 37 | n/a |
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