| Index | St. Lucas | Iowa | National |
| Average Test Scores | n/a | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | St. Lucas | Iowa | National |
| Completed 8th grade | 95.3% | 89.2% | 84.3% |
| Completed high school | 80.5% | 87.7% | 83.0% |
| Completed some college | 49.2% | 59.8% | 59.4% |
| Completed associate degree | 31.3% | 38.4% | 38.5% |
| Completed bachelors | 23.4% | 27.2% | 30.3% |
| Completed masters | 4.7% | 8.7% | 11.5% |
| Completed professional degree | 0.8% | 2.7% | 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 St. Lucas. Using the proficiency score averages, the average test scores for St. Lucas, IA schools is n/a. The average student to teacher ratio is n/a. In St. Lucas, IA, an average of 95.3% of students have completed 8th grade and an average of 80.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Calmar, IA | 989 | 80% | 66.7% |
| Ossian, IA | 798 | 75% | 55.2% |
| Sumner, IA | 2,224 | 71% | 47.9% |
| West Union, IA | 2,630 | 69% | 42.7% |
| Jackson Junction, IA | 89 | 67% | 39.6% |
| St. Lucas, IA | 129 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Nauvoo, AL | 129 | 44% | 8.3% |
| Adrian, TX | 129 | 35% | 28.1% |
| McKittrick, CA | 130 | 58% | 19.8% |
| Delco, NC | 128 | 32% | 33.3% |
| Ouzinkie, AK | 128 | 50% | 4.2% |
| St. Lucas, IA | 129 | n/a |
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