| Index | Diamond | Missouri | National |
| Average Test Scores | 41% | 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 | Diamond | Missouri | National |
| Completed 8th grade | 79.8% | 86.0% | 84.3% |
| Completed high school | 75.5% | 84.2% | 83.0% |
| Completed some college | 39.3% | 57.7% | 59.4% |
| Completed associate degree | 18.6% | 35.2% | 38.5% |
| Completed bachelors | 10.2% | 27.6% | 30.3% |
| Completed masters | 1.2% | 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 Diamond. Using the proficiency score averages, the average test scores for Diamond, MO schools is 41%. The average student to teacher ratio is n/a. In Diamond, MO, an average of 79.8% of students have completed 8th grade and an average of 75.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Webb City, MO | 11,884 | 65% | 35.2% |
| Carterville, MO | 2,157 | 60% | 24.0% |
| Carl Junction, MO | 8,202 | 49% | 1.7% |
| Granby, MO | 2,224 | 48% | 0.5% |
| Neosho, MO | 12,036 | 45% | 6.0% |
| Diamond, MO | 926 | 41% | 14.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Tully, NY | 926 | 58% | 21.4% |
| Henderson, MN | 926 | 44% | 9.1% |
| Franklin, NE | 926 | 70% | 45.3% |
| Tickfaw, LA | 927 | 51% | 5.6% |
| Louise, TX | 927 | 39% | 19.1% |
| Diamond, MO | 926 | 41% | 14.2% |
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