| Index | Grenville | New Mexico | National |
| Average Test Scores | n/a | 27% | 48% |
| Student/Teacher ratio | n/a | 15:1 | 16:1 |
| Total public schools | n/a | 667 | 79,221 |
| Total private schools | n/a | 163 | 24,874 |
| Total post-secondary schools | n/a | 55 | 7,963 |
| Index | Grenville | New Mexico | National |
| Completed 8th grade | 100.0% | 81.4% | 84.3% |
| Completed high school | 100.0% | 80.0% | 83.0% |
| Completed some college | 93.8% | 58.2% | 59.4% |
| Completed associate degree | 68.8% | 34.7% | 38.5% |
| Completed bachelors | 56.3% | 26.7% | 30.3% |
| Completed masters | 0.0% | 11.6% | 11.5% |
| Completed professional degree | 0.0% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.8% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Grenville. Using the proficiency score averages, the average test scores for Grenville, NM schools is n/a. The average student to teacher ratio is n/a. In Grenville, NM, an average of 100.0% of students have completed 8th grade and an average of 100.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Des Moines, NM | 104 | 65% | 35.4% |
| Grenville, NM | 34 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Cotopaxi, CO | 34 | 40% | 17.2% |
| Deputy, IN | 34 | 65% | 35.4% |
| Amado, AZ | 34 | 22% | 54.2% |
| Langdon, KS | 33 | 22% | 54.2% |
| Chignik Lagoon, AK | 35 | 50% | 4.2% |
| Grenville, NM | 34 | n/a |
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