| Index | Delhi | Iowa | National |
| Average Test Scores | 90% | 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 | Delhi | Iowa | National |
| Completed 8th grade | 90.4% | 89.2% | 84.3% |
| Completed high school | 89.5% | 87.7% | 83.0% |
| Completed some college | 46.8% | 59.8% | 59.4% |
| Completed associate degree | 30.4% | 38.4% | 38.5% |
| Completed bachelors | 22.5% | 27.2% | 30.3% |
| Completed masters | 5.6% | 8.7% | 11.5% |
| Completed professional degree | 2.9% | 2.7% | 3.3% |
| Completed doctorate | 2.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Delhi. Using the proficiency score averages, the average test scores for Delhi, IA schools is 90%. The average student to teacher ratio is n/a. In Delhi, IA, an average of 90.4% of students have completed 8th grade and an average of 89.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Coggon, IA | 743 | 78% | 62.5% |
| Manchester, IA | 5,011 | 77% | 59.7% |
| Monticello, IA | 3,843 | 75% | 56.6% |
| Dyersville, IA | 4,131 | 75% | 55.2% |
| Colesburg, IA | 522 | 65% | 34.4% |
| Delhi, IA | 458 | 90% | 86.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Crawford, CO | 458 | 57% | 18.8% |
| Murray, NE | 458 | 57% | 18.8% |
| McKean, PA | 458 | 80% | 65.6% |
| Little Rock, IA | 458 | 61% | 27.1% |
| Peachland, NC | 458 | 62% | 28.1% |
| Delhi, IA | 458 | 90% | 86.8% |
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