| Index | Swansea | Illinois | National |
| Average Test Scores | 44% | 33% | 48% |
| Student/Teacher ratio | 14:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Swansea | Illinois | National |
| Completed 8th grade | 93.4% | 86.2% | 84.3% |
| Completed high school | 92.4% | 84.7% | 83.0% |
| Completed some college | 73.3% | 61.8% | 59.4% |
| Completed associate degree | 48.4% | 40.7% | 38.5% |
| Completed bachelors | 36.5% | 32.9% | 30.3% |
| Completed masters | 15.1% | 12.7% | 11.5% |
| Completed professional degree | 4.3% | 3.4% | 3.3% |
| Completed doctorate | 1.3% | 1.2% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Swansea. Using the proficiency score averages, the average test scores for Swansea, IL schools is 44%. The average student to teacher ratio is 14:1. In Swansea, IL, an average of 93.4% of students have completed 8th grade and an average of 92.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Jacob, IL | 1,529 | 67% | 39.6% |
| Maryville, IL | 7,962 | 65% | 34.4% |
| Smithton, IL | 4,019 | 61% | 27.1% |
| Waterloo, IL | 10,417 | 59% | 22.4% |
| Glen Carbon, IL | 12,468 | 57% | 18.8% |
| Swansea, IL | 14,100 | 44% | 7.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Vail, AZ | 14,099 | 60% | 24.4% |
| Willowick, OH | 14,103 | 63% | 31.3% |
| Auburn, CA | 14,104 | 37% | 23.4% |
| Red Bluff, CA | 14,091 | 36% | 24.7% |
| Springdale, NJ | 14,111 | 67% | 38.5% |
| Swansea, IL | 14,100 | 44% | 7.6% |
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