| Index | Elmo | Missouri | National |
| Average Test Scores | n/a | 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 | Elmo | Missouri | National |
| Completed 8th grade | 75.2% | 86.0% | 84.3% |
| Completed high school | 75.2% | 84.2% | 83.0% |
| Completed some college | 38.1% | 57.7% | 59.4% |
| Completed associate degree | 23.9% | 35.2% | 38.5% |
| Completed bachelors | 15.9% | 27.6% | 30.3% |
| Completed masters | 4.4% | 10.4% | 11.5% |
| Completed professional degree | 2.7% | 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 Elmo. Using the proficiency score averages, the average test scores for Elmo, MO schools is n/a. The average student to teacher ratio is n/a. In Elmo, MO, an average of 75.2% of students have completed 8th grade and an average of 75.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| College Springs, IA | 256 | 58% | 19.8% |
| Maryville, MO | 11,963 | 55% | 14.9% |
| Pickering, MO | 174 | 55% | 14.6% |
| Fairfax, MO | 721 | 53% | 9.4% |
| Tarkio, MO | 1,513 | 45% | 7.3% |
| Elmo, MO | 184 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Kaktovik, AK | 184 | 30% | 37.5% |
| Hardyville, KY | 184 | 50% | 3.1% |
| Minnewaukan, ND | 184 | 32% | 32.8% |
| Vandervoort, AR | 184 | 50% | 3.1% |
| Starks, LA | 184 | 67% | 39.6% |
| Elmo, MO | 184 | n/a |
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