| Index | Ruby | South Carolina | National |
| Average Test Scores | 52% | 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 | Ruby | South Carolina | National |
| Completed 8th grade | 81.5% | 83.0% | 84.3% |
| Completed high school | 79.6% | 81.6% | 83.0% |
| Completed some college | 45.4% | 56.6% | 59.4% |
| Completed associate degree | 33.8% | 35.6% | 38.5% |
| Completed bachelors | 26.2% | 26.5% | 30.3% |
| Completed masters | 10.0% | 9.6% | 11.5% |
| Completed professional degree | 2.3% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Ruby. Using the proficiency score averages, the average test scores for Ruby, SC schools is 52%. The average student to teacher ratio is n/a. In Ruby, SC, an average of 81.5% of students have completed 8th grade and an average of 79.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Patrick, SC | 323 | 60% | 24.0% |
| Chesterfield, SC | 1,486 | 50% | 4.2% |
| Pageland, SC | 2,556 | 46% | 5.2% |
| Jefferson, SC | 1,118 | 36% | 25.0% |
| Wadesboro, NC | 5,273 | 25% | 47.7% |
| Ruby, SC | 304 | 52% | 8.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Belfry, MT | 304 | 50% | 4.2% |
| Trapper Creek, AK | 304 | 50% | 4.2% |
| Surrency, GA | 303 | 52% | 8.3% |
| Mill Creek, OK | 303 | 32% | 32.8% |
| Milligan, NE | 303 | 50% | 4.2% |
| Ruby, SC | 304 | 52% | 8.3% |
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