| Index | New Plymouth | Idaho | National |
| Average Test Scores | 52% | 47% | 48% |
| Student/Teacher ratio | 17:1 | 17:1 | 16:1 |
| Total public schools | 3 | 446 | 79,221 |
| Total private schools | n/a | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | New Plymouth | Idaho | National |
| Completed 8th grade | 79.9% | 85.7% | 84.3% |
| Completed high school | 78.8% | 84.8% | 83.0% |
| Completed some college | 47.1% | 62.4% | 59.4% |
| Completed associate degree | 19.0% | 35.6% | 38.5% |
| Completed bachelors | 9.7% | 26.2% | 30.3% |
| Completed masters | 2.8% | 8.4% | 11.5% |
| Completed professional degree | 1.2% | 2.6% | 3.3% |
| Completed doctorate | 1.2% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in New Plymouth. Using the proficiency score averages, the average test scores for New Plymouth, ID schools is 52%. The average student to teacher ratio is 17:1. In New Plymouth, ID, an average of 79.9% of students have completed 8th grade and an average of 78.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fruitland, ID | 5,390 | 49% | 1.8% |
| Parma, ID | 1,990 | 47% | 1.7% |
| Nyssa, OR | 3,176 | 39% | 19.1% |
| Ontario, OR | 11,031 | 36% | 24.3% |
| Payette, ID | 7,655 | 26% | 45.6% |
| New Plymouth, ID | 1,641 | 52% | 8.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Whitmire, SC | 1,641 | 41% | 15.1% |
| North Vacherie, LA | 1,641 | 30% | 37.5% |
| Freeman, SD | 1,641 | 62% | 29.9% |
| Hawkins, TX | 1,641 | 52% | 7.8% |
| Perryopolis, PA | 1,641 | 53% | 10.4% |
| New Plymouth, ID | 1,641 | 52% | 8.0% |
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