| Index | Old Jefferson | 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 | Old Jefferson | Louisiana | National |
| Completed 8th grade | 97.6% | 80.2% | 84.3% |
| Completed high school | 97.6% | 78.5% | 83.0% |
| Completed some college | 71.4% | 49.9% | 59.4% |
| Completed associate degree | 45.1% | 28.6% | 38.5% |
| Completed bachelors | 34.5% | 23.0% | 30.3% |
| Completed masters | 9.8% | 7.9% | 11.5% |
| Completed professional degree | 4.0% | 2.6% | 3.3% |
| Completed doctorate | 3.7% | 1.0% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Old Jefferson. Using the proficiency score averages, the average test scores for Old Jefferson, LA schools is n/a. The average student to teacher ratio is n/a. In Old Jefferson, LA, an average of 97.6% of students have completed 8th grade and an average of 97.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Prairieville, LA | 33,228 | 88% | 82.5% |
| Watson, LA | 1,225 | 84% | 75.0% |
| Central, LA | 29,235 | 83% | 73.4% |
| Denham Springs, LA | 9,908 | 80% | 67.0% |
| French Settlement, LA | 960 | 79% | 65.1% |
| Old Jefferson, LA | 7,321 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Gorham, ME | 7,322 | 57% | 19.2% |
| Mexia, TX | 7,319 | 36% | 24.7% |
| Mills River, NC | 7,319 | 68% | 42.2% |
| Washington, IA | 7,318 | 56% | 16.0% |
| Hastings, MI | 7,314 | 44% | 7.7% |
| Old Jefferson, LA | 7,321 | n/a |
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