| Index | Armstrong | Oklahoma | National |
| Average Test Scores | n/a | 32% | 48% |
| Student/Teacher ratio | n/a | 22:1 | 16:1 |
| Total public schools | n/a | 1,346 | 79,221 |
| Total private schools | n/a | 159 | 24,874 |
| Total post-secondary schools | n/a | 178 | 7,963 |
| Index | Armstrong | Oklahoma | National |
| Completed 8th grade | 50.0% | 83.5% | 84.3% |
| Completed high school | 46.0% | 82.2% | 83.0% |
| Completed some college | 24.2% | 55.6% | 59.4% |
| Completed associate degree | 5.6% | 31.9% | 38.5% |
| Completed bachelors | 4.0% | 24.5% | 30.3% |
| Completed masters | 0.0% | 8.1% | 11.5% |
| Completed professional degree | 0.0% | 2.3% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Armstrong. Using the proficiency score averages, the average test scores for Armstrong, OK schools is n/a. The average student to teacher ratio is n/a. In Armstrong, OK, an average of 50.0% of students have completed 8th grade and an average of 46.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Caddo, OK | 1,132 | 42% | 12.5% |
| Durant, OK | 18,516 | 40% | 17.5% |
| Milburn, OK | 269 | 36% | 25.0% |
| Caney, OK | 303 | 32% | 32.8% |
| Colbert, OK | 1,230 | 32% | 32.8% |
| Armstrong, OK | 120 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Holliday, MO | 120 | 40% | 16.7% |
| Hitchcock, SD | 120 | 55% | 14.6% |
| Roy, MT | 120 | 50% | 4.2% |
| Anton Chico, NM | 120 | 28% | 42.7% |
| Elizabeth, IN | 121 | 51% | 6.3% |
| Armstrong, OK | 120 | n/a |
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