| Index | Delta | Missouri | National |
| Average Test Scores | 29% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Delta | Missouri | National |
| Completed 8th grade | 73.6% | 86.0% | 84.3% |
| Completed high school | 69.4% | 84.2% | 83.0% |
| Completed some college | 33.6% | 57.7% | 59.4% |
| Completed associate degree | 16.2% | 35.2% | 38.5% |
| Completed bachelors | 9.4% | 27.6% | 30.3% |
| Completed masters | 1.7% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Delta. Using the proficiency score averages, the average test scores for Delta, MO schools is 29%. The average student to teacher ratio is n/a. In Delta, MO, an average of 73.6% of students have completed 8th grade and an average of 69.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Oran, MO | 1,285 | 61% | 26.6% |
| Bell City, MO | 494 | 52% | 8.3% |
| Jackson, MO | 14,893 | 50% | 3.3% |
| Advance, MO | 1,430 | 47% | 2.1% |
| Marble Hill, MO | 2,001 | 43% | 10.4% |
| Delta, MO | 464 | 29% | 39.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Canton, OK | 464 | 26% | 45.8% |
| Scammon Bay, AK | 464 | 7% | 86.5% |
| Waubun, MN | 464 | 33% | 30.7% |
| Saguache, CO | 464 | 10% | 79.2% |
| Montrose, MO | 464 | 45% | 6.3% |
| Delta, MO | 464 | 29% | 39.1% |
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