| Index | Costilla | New Mexico | National |
| Average Test Scores | 40% | 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 | Costilla | New Mexico | National |
| Completed 8th grade | 45.5% | 81.4% | 84.3% |
| Completed high school | 45.5% | 80.0% | 83.0% |
| Completed some college | 45.5% | 58.2% | 59.4% |
| Completed associate degree | 45.5% | 34.7% | 38.5% |
| Completed bachelors | 45.5% | 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 Costilla. Using the proficiency score averages, the average test scores for Costilla, NM schools is 40%. The average student to teacher ratio is n/a. In Costilla, NM, an average of 45.5% of students have completed 8th grade and an average of 45.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Costilla, NM | 89 | 40% | 16.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Chuathbaluk, AK | 89 | 50% | 4.2% |
| Powhattan, KS | 89 | 20% | 58.3% |
| Antimony, UT | 89 | 50% | 4.2% |
| Fort Ransom, ND | 89 | 50% | 4.2% |
| Jackson Junction, IA | 89 | 67% | 39.6% |
| Costilla, NM | 89 | 40% | 16.7% |
Here are the best places to live in New Mexico
Safest States In The US
Check out the 10 most dangerous cities in New Mexico
Most Dangerous Cities In The US