| Index | Fort Defiance | Arizona | National |
| Average Test Scores | 25% | 43% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | 1 | 1,863 | 79,221 |
| Total private schools | n/a | 316 | 24,874 |
| Total post-secondary schools | n/a | 148 | 7,963 |
| Index | Fort Defiance | Arizona | National |
| Completed 8th grade | 88.6% | 83.7% | 84.3% |
| Completed high school | 87.6% | 82.2% | 83.0% |
| Completed some college | 38.9% | 62.0% | 59.4% |
| Completed associate degree | 14.2% | 36.5% | 38.5% |
| Completed bachelors | 7.8% | 28.0% | 30.3% |
| Completed masters | 1.8% | 10.4% | 11.5% |
| Completed professional degree | 0.4% | 2.9% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Fort Defiance. Using the proficiency score averages, the average test scores for Fort Defiance, AZ schools is 25%. The average student to teacher ratio is n/a. In Fort Defiance, AZ, an average of 88.6% of students have completed 8th grade and an average of 87.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Window Rock, AZ | 2,451 | 27% | 43.8% |
| Navajo, NM | 1,818 | 11% | 76.3% |
| St. Michaels, AZ | 916 | 9% | 82.3% |
| Fort Defiance, AZ | 4,209 | 25% | 49.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Deer Park, WA | 4,209 | 57% | 19.0% |
| Rigby, ID | 4,209 | 46% | 4.2% |
| Arabi, LA | 4,207 | 72% | 49.0% |
| Elmira Heights, NY | 4,206 | 54% | 13.2% |
| Chalfont, PA | 4,212 | 75% | 55.7% |
| Fort Defiance, AZ | 4,209 | 25% | 49.0% |
Here are the best places to live in Arizona
These are the 10 cheapest cities in Arizona
These are the largest cities in Arizona
Check out the 10 safest cities in Arizona