| Index | Portales | New Mexico | National |
| Average Test Scores | 30% | 27% | 48% |
| Student/Teacher ratio | 15:1 | 15:1 | 16:1 |
| Total public schools | 8 | 667 | 79,221 |
| Total private schools | n/a | 163 | 24,874 |
| Total post-secondary schools | 1 | 55 | 7,963 |
| Index | Portales | New Mexico | National |
| Completed 8th grade | 74.7% | 81.4% | 84.3% |
| Completed high school | 73.9% | 80.0% | 83.0% |
| Completed some college | 55.5% | 58.2% | 59.4% |
| Completed associate degree | 33.4% | 34.7% | 38.5% |
| Completed bachelors | 24.8% | 26.7% | 30.3% |
| Completed masters | 12.0% | 11.6% | 11.5% |
| Completed professional degree | 3.6% | 3.4% | 3.3% |
| Completed doctorate | 3.2% | 1.8% | 1.3% |
There are a total of 8 public schools, n/a private schools and 1 post-secondary schools in Portales. Using the proficiency score averages, the average test scores for Portales, NM schools is 30%. The average student to teacher ratio is 15:1. In Portales, NM, an average of 74.7% of students have completed 8th grade and an average of 73.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Floyd, NM | 91 | 29% | 39.6% |
| Portales, NM | 11,713 | 30% | 38.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Arlington, TN | 11,715 | 47% | 2.8% |
| Grafton, WI | 11,718 | 61% | 27.6% |
| Webster, MA | 11,719 | 29% | 39.6% |
| Florham Park, NJ | 11,719 | 74% | 53.6% |
| Wanaque, NJ | 11,719 | 62% | 28.5% |
| Portales, NM | 11,713 | 30% | 38.0% |
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