| Index | Lester | 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 | Lester | Iowa | National |
| Completed 8th grade | 97.8% | 89.2% | 84.3% |
| Completed high school | 92.9% | 87.7% | 83.0% |
| Completed some college | 51.4% | 59.8% | 59.4% |
| Completed associate degree | 30.1% | 38.4% | 38.5% |
| Completed bachelors | 13.1% | 27.2% | 30.3% |
| Completed masters | 1.6% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 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 Lester. Using the proficiency score averages, the average test scores for Lester, IA schools is n/a. The average student to teacher ratio is n/a. In Lester, IA, an average of 97.8% of students have completed 8th grade and an average of 92.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Valley Springs, SD | 920 | 85% | 77.1% |
| Inwood, IA | 1,021 | 80% | 67.4% |
| Beaver Creek, MN | 350 | 80% | 65.6% |
| Rock Rapids, IA | 2,621 | 79% | 64.2% |
| Brandon, SD | 10,388 | 70% | 46.0% |
| Lester, IA | 287 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Kelliher, MN | 287 | 42% | 12.5% |
| Olsburg, KS | 287 | 65% | 35.4% |
| Turpin, OK | 287 | 29% | 40.1% |
| Sawyer, ND | 287 | 50% | 4.2% |
| Harrison, ID | 287 | 38% | 21.9% |
| Lester, IA | 287 | n/a |