| Index | Fairfield | 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 | Fairfield | Oklahoma | National |
| Completed 8th grade | 82.1% | 83.5% | 84.3% |
| Completed high school | 80.0% | 82.2% | 83.0% |
| Completed some college | 29.5% | 55.6% | 59.4% |
| Completed associate degree | 15.9% | 31.9% | 38.5% |
| Completed bachelors | 14.9% | 24.5% | 30.3% |
| Completed masters | 7.2% | 8.1% | 11.5% |
| Completed professional degree | 2.3% | 2.3% | 3.3% |
| Completed doctorate | 2.3% | 1.0% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Fairfield. Using the proficiency score averages, the average test scores for Fairfield, OK schools is n/a. The average student to teacher ratio is n/a. In Fairfield, OK, an average of 82.1% of students have completed 8th grade and an average of 80.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lincoln, AR | 2,530 | 41% | 14.6% |
| Welling, OK | 733 | 32% | 33.3% |
| Westville, OK | 1,687 | 24% | 50.0% |
| Stilwell, OK | 4,163 | 22% | 54.9% |
| Greasy, OK | 270 | 10% | 79.2% |
| Fairfield, OK | 729 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Wheatfield, IN | 729 | 53% | 10.7% |
| Lawndale, NC | 729 | 44% | 8.9% |
| Stetsonville, WI | 729 | 55% | 13.5% |
| Heron Lake, MN | 729 | 50% | 3.1% |
| Plankinton, SD | 730 | 39% | 18.2% |
| Fairfield, OK | 729 | n/a |
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