| Index | Lacon | Illinois | National |
| Average Test Scores | 45% | 33% | 48% |
| Student/Teacher ratio | 22:1 | 18:1 | 16:1 |
| Total public schools | 1 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Lacon | Illinois | National |
| Completed 8th grade | 89.1% | 86.2% | 84.3% |
| Completed high school | 88.2% | 84.7% | 83.0% |
| Completed some college | 45.4% | 61.8% | 59.4% |
| Completed associate degree | 23.8% | 40.7% | 38.5% |
| Completed bachelors | 11.1% | 32.9% | 30.3% |
| Completed masters | 3.5% | 12.7% | 11.5% |
| Completed professional degree | 0.6% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Lacon. Using the proficiency score averages, the average test scores for Lacon, IL schools is 45%. The average student to teacher ratio is 22:1. In Lacon, IL, an average of 89.1% of students have completed 8th grade and an average of 88.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dunlap, IL | 1,100 | 63% | 32.1% |
| Benson, IL | 460 | 50% | 3.1% |
| Chillicothe, IL | 6,326 | 46% | 4.0% |
| Varna, IL | 456 | 40% | 16.7% |
| Sparland, IL | 390 | 39% | 18.8% |
| Lacon, IL | 1,771 | 45% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Crothersville, IN | 1,771 | 33% | 30.7% |
| Columbia City, OR | 1,770 | 35% | 28.1% |
| Scotland Neck, NC | 1,770 | 17% | 64.6% |
| Fort Deposit, AL | 1,770 | 21% | 56.8% |
| Stamps, AR | 1,770 | 25% | 49.0% |
| Lacon, IL | 1,771 | 45% | 7.3% |
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