| Index | Newcastle | Wyoming | National |
| Average Test Scores | 55% | 53% | 48% |
| Student/Teacher ratio | 12:1 | 12:1 | 16:1 |
| Total public schools | 5 | 271 | 79,221 |
| Total private schools | n/a | 36 | 24,874 |
| Total post-secondary schools | n/a | 14 | 7,963 |
| Index | Newcastle | Wyoming | National |
| Completed 8th grade | 83.2% | 88.0% | 84.3% |
| Completed high school | 82.7% | 87.3% | 83.0% |
| Completed some college | 62.7% | 63.2% | 59.4% |
| Completed associate degree | 27.0% | 36.7% | 38.5% |
| Completed bachelors | 14.4% | 26.0% | 30.3% |
| Completed masters | 4.5% | 8.8% | 11.5% |
| Completed professional degree | 1.1% | 2.6% | 3.3% |
| Completed doctorate | 0.8% | 1.2% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Newcastle. Using the proficiency score averages, the average test scores for Newcastle, WY schools is 55%. The average student to teacher ratio is 12:1. In Newcastle, WY, an average of 83.2% of students have completed 8th grade and an average of 82.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Newcastle, WY | 3,395 | 55% | 13.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Kenedy, TX | 3,394 | 39% | 19.4% |
| Clayton, DE | 3,393 | 51% | 7.0% |
| Frontenac, KS | 3,398 | 35% | 26.4% |
| Karnes City, TX | 3,398 | 43% | 11.5% |
| Tipton, CA | 3,391 | 37% | 22.9% |
| Newcastle, WY | 3,395 | 55% | 13.5% |
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