| Index | Herrin | Illinois | National | 
| Average Test Scores | 36% | 33% | 48% | 
| Student/Teacher ratio | 18:1 | 18:1 | 16:1 | 
| Total public schools | 5 | 3,938 | 79,221 | 
| Total private schools | 2 | 1,438 | 24,874 | 
| Total post-secondary schools | 1 | 306 | 7,963 | 

 
				
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				| Index | Herrin | Illinois | National | 
| Completed 8th grade | 86.9% | 86.2% | 84.3% | 
| Completed high school | 85.1% | 84.7% | 83.0% | 
| Completed some college | 62.9% | 61.8% | 59.4% | 
| Completed associate degree | 35.1% | 40.7% | 38.5% | 
| Completed bachelors | 22.8% | 32.9% | 30.3% | 
| Completed masters | 6.7% | 12.7% | 11.5% | 
| Completed professional degree | 2.1% | 3.4% | 3.3% | 
| Completed doctorate | 0.4% | 1.2% | 1.3% | 
There are a total of 5 public schools, 2 private schools and 1 post-secondary schools in Herrin. Using the proficiency score averages, the average test scores for Herrin, IL schools is 36%. The average student to teacher ratio is 18:1. In Herrin, IL, an average of 86.9% of students have completed 8th grade and an average of 85.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. | 
| Carterville, IL | 5,861 | 53% | 10.9% | 
| Creal Springs, IL | 473 | 42% | 12.5% | 
| Carbondale, IL | 25,400 | 34% | 29.3% | 
| Marion, IL | 17,539 | 33% | 30.9% | 
| Du Quoin, IL | 5,723 | 32% | 33.3% | 
| Herrin, IL | 12,806 | 36% | 24.7% | 
| City | Population | Avg. Test Scores | National Avg. | 
| Jacksonville, AL | 12,796 | 59% | 23.4% | 
| Grass Valley, CA | 12,817 | 47% | 2.7% | 
| Lindsay, CA | 12,793 | 40% | 17.7% | 
| McComb, MS | 12,788 | 27% | 43.2% | 
| Mercerville, NJ | 12,783 | 50% | 4.2% | 
| Herrin, IL | 12,806 | 36% | 24.7% |