| Index | Parker | South Carolina | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 932 | 79,221 |
| Total private schools | n/a | 369 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |

| Index | Parker | South Carolina | National |
| Completed 8th grade | 59.6% | 83.0% | 84.3% |
| Completed high school | 54.3% | 81.6% | 83.0% |
| Completed some college | 31.0% | 56.6% | 59.4% |
| Completed associate degree | 14.3% | 35.6% | 38.5% |
| Completed bachelors | 10.8% | 26.5% | 30.3% |
| Completed masters | 2.3% | 9.6% | 11.5% |
| Completed professional degree | 1.0% | 2.5% | 3.3% |
| Completed doctorate | 1.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Parker. Using the proficiency score averages, the average test scores for Parker, SC schools is n/a. The average student to teacher ratio is n/a. In Parker, SC, an average of 59.6% of students have completed 8th grade and an average of 54.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Taylors, SC | 23,727 | 69% | 43.6% |
| Mauldin, SC | 26,699 | 69% | 42.7% |
| Greer, SC | 33,190 | 64% | 33.0% |
| Simpsonville, SC | 23,729 | 63% | 31.7% |
| West Pelzer, SC | 1,083 | 61% | 26.0% |
| Parker, SC | 12,654 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Patchogue, NY | 12,654 | 20% | 57.4% |
| Lincolnwood, IL | 12,655 | 50% | 4.7% |
| Palmer Town, MA | 12,662 | 34% | 28.5% |
| St. Marys, PA | 12,663 | 61% | 26.7% |
| Effingham, IL | 12,644 | 29% | 39.6% |
| Parker, SC | 12,654 | n/a |