| Index | Marietta | North Carolina | National |
| Average Test Scores | n/a | 43% | 48% |
| Student/Teacher ratio | n/a | 15:1 | 16:1 |
| Total public schools | n/a | 1,895 | 79,221 |
| Total private schools | n/a | 510 | 24,874 |
| Total post-secondary schools | n/a | 183 | 7,963 |
| Index | Marietta | North Carolina | National |
| Completed 8th grade | 83.9% | 83.4% | 84.3% |
| Completed high school | 83.9% | 81.9% | 83.0% |
| Completed some college | 42.9% | 59.9% | 59.4% |
| Completed associate degree | 18.8% | 38.1% | 38.5% |
| Completed bachelors | 8.9% | 29.0% | 30.3% |
| Completed masters | 5.4% | 10.2% | 11.5% |
| Completed professional degree | 0.0% | 2.9% | 3.3% |
| Completed doctorate | 0.0% | 1.3% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Marietta. Using the proficiency score averages, the average test scores for Marietta, NC schools is n/a. The average student to teacher ratio is n/a. In Marietta, NC, an average of 83.9% of students have completed 8th grade and an average of 83.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cerro Gordo, NC | 322 | 39% | 18.2% |
| Dillon, SC | 6,358 | 36% | 24.8% |
| Lake View, SC | 714 | 35% | 26.6% |
| Tabor City, NC | 4,038 | 33% | 30.5% |
| Mullins, SC | 4,276 | 30% | 38.5% |
| Marietta, NC | 146 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Chinese Camp, CA | 146 | 60% | 25.0% |
| Cloverdale, OR | 146 | 42% | 12.5% |
| Downsville, LA | 146 | 69% | 43.8% |
| Crossnore, NC | 146 | 33% | 30.7% |
| Orrville, AL | 145 | 23% | 51.6% |
| Marietta, NC | 146 | n/a |
Here are the best places to live in North Carolina
Most Dangerous States In The US
Check out the 10 most dangerous cities in North Carolina
These are the largest cities in North Carolina