| Index | Welsh | Louisiana | National |
| Average Test Scores | 75% | 66% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 2 | 1,334 | 79,221 |
| Total private schools | n/a | 395 | 24,874 |
| Total post-secondary schools | n/a | 175 | 7,963 |
| Index | Welsh | Louisiana | National |
| Completed 8th grade | 79.9% | 80.2% | 84.3% |
| Completed high school | 75.9% | 78.5% | 83.0% |
| Completed some college | 45.0% | 49.9% | 59.4% |
| Completed associate degree | 21.1% | 28.6% | 38.5% |
| Completed bachelors | 15.0% | 23.0% | 30.3% |
| Completed masters | 5.0% | 7.9% | 11.5% |
| Completed professional degree | 0.5% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.0% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Welsh. Using the proficiency score averages, the average test scores for Welsh, LA schools is 75%. The average student to teacher ratio is 16:1. In Welsh, LA, an average of 79.9% of students have completed 8th grade and an average of 75.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mermentau, LA | 637 | 87% | 81.3% |
| Lacassine, LA | 58 | 79% | 63.5% |
| Lake Arthur, LA | 2,801 | 78% | 62.0% |
| Iowa, LA | 3,282 | 75% | 55.7% |
| Roanoke, LA | 566 | 69% | 43.8% |
| Welsh, LA | 3,307 | 75% | 55.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Hartsdale, NY | 3,308 | 56% | 16.1% |
| Newton, MS | 3,306 | 35% | 27.4% |
| Brookhaven, NY | 3,306 | 66% | 37.0% |
| North Lakeville, MA | 3,305 | 55% | 13.5% |
| Verona, MS | 3,310 | 25% | 49.0% |
| Welsh, LA | 3,307 | 75% | 55.7% |
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