| Index | Marble Falls | Texas | National |
| Average Test Scores | 41% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 4 | 7,418 | 79,221 |
| Total private schools | 2 | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |

| Index | Marble Falls | Texas | National |
| Completed 8th grade | 83.5% | 79.3% | 84.3% |
| Completed high school | 82.1% | 77.8% | 83.0% |
| Completed some college | 59.9% | 57.3% | 59.4% |
| Completed associate degree | 37.1% | 34.9% | 38.5% |
| Completed bachelors | 27.2% | 28.1% | 30.3% |
| Completed masters | 10.2% | 9.6% | 11.5% |
| Completed professional degree | 2.1% | 2.6% | 3.3% |
| Completed doctorate | 0.7% | 1.1% | 1.3% |
There are a total of 4 public schools, 2 private schools and n/a post-secondary schools in Marble Falls. Using the proficiency score averages, the average test scores for Marble Falls, TX schools is 41%. The average student to teacher ratio is 15:1. In Marble Falls, TX, an average of 83.5% of students have completed 8th grade and an average of 82.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bertram, TX | 1,931 | 40% | 17.7% |
| Burnet, TX | 6,587 | 38% | 21.6% |
| Kingsland, TX | 7,438 | 37% | 23.4% |
| Granite Shoals, TX | 5,336 | 30% | 37.5% |
| Marble Falls, TX | 6,990 | 41% | 15.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Laurel, MT | 6,995 | 30% | 37.5% |
| Taneytown, MD | 6,995 | 48% | 0.5% |
| Bayville, NY | 6,985 | 75% | 55.2% |
| Demopolis, AL | 6,979 | 40% | 16.0% |
| Cortland, OH | 7,001 | 84% | 74.2% |
| Marble Falls, TX | 6,990 | 41% | 15.2% |