| Index | Gilliam | Louisiana | National |
| Average Test Scores | n/a | 66% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,334 | 79,221 |
| Total private schools | n/a | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Gilliam | Louisiana | National |
| Completed 8th grade | 87.7% | 80.2% | 84.3% |
| Completed high school | 87.7% | 78.5% | 83.0% |
| Completed some college | 60.5% | 49.9% | 59.4% |
| Completed associate degree | 38.3% | 28.6% | 38.5% |
| Completed bachelors | 37.0% | 23.0% | 30.3% |
| Completed masters | 7.4% | 7.9% | 11.5% |
| Completed professional degree | 1.2% | 2.6% | 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 Gilliam. Using the proficiency score averages, the average test scores for Gilliam, LA schools is n/a. The average student to teacher ratio is n/a. In Gilliam, LA, an average of 87.7% of students have completed 8th grade and an average of 87.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Belcher, LA | 296 | 94% | 95.8% |
| Benton, LA | 2,124 | 88% | 83.6% |
| Plain Dealing, LA | 1,003 | 65% | 34.4% |
| Vivian, LA | 3,531 | 60% | 25.0% |
| Mooringsport, LA | 522 | 60% | 24.0% |
| Gilliam, LA | 109 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Eagle, AK | 109 | 50% | 4.2% |
| New Middletown, IN | 109 | 65% | 34.4% |
| Thorp, WA | 109 | 60% | 24.0% |
| Vilas, CO | 109 | 50% | 4.2% |
| Roosevelt, WA | 108 | 50% | 4.2% |
| Gilliam, LA | 109 | n/a |
Here are the best places to live in Louisiana
See the best places to live in Gilliam
Check out the 10 safest cities in Louisiana
These are the largest cities in Louisiana