| Index | Clear Lake | Iowa | National |
| Average Test Scores | 73% | 69% | 48% |
| Student/Teacher ratio | 13:1 | 13:1 | 16:1 |
| Total public schools | 5 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Clear Lake | Iowa | National |
| Completed 8th grade | 92.9% | 89.2% | 84.3% |
| Completed high school | 90.8% | 87.7% | 83.0% |
| Completed some college | 64.8% | 59.8% | 59.4% |
| Completed associate degree | 37.5% | 38.4% | 38.5% |
| Completed bachelors | 25.1% | 27.2% | 30.3% |
| Completed masters | 5.1% | 8.7% | 11.5% |
| Completed professional degree | 1.5% | 2.7% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Clear Lake. Using the proficiency score averages, the average test scores for Clear Lake, IA schools is 73%. The average student to teacher ratio is 13:1. In Clear Lake, IA, an average of 92.9% of students have completed 8th grade and an average of 90.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Garner, IA | 3,060 | 78% | 63.0% |
| Manly, IA | 1,480 | 78% | 61.5% |
| Forest City, IA | 4,117 | 75% | 55.9% |
| Ventura, IA | 761 | 74% | 54.2% |
| Rockwell, IA | 871 | 67% | 39.6% |
| Clear Lake, IA | 7,594 | 73% | 52.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Sioux Center, IA | 7,592 | 69% | 43.8% |
| West Frankfort, IL | 7,597 | 24% | 50.7% |
| Lamar, CO | 7,598 | 35% | 26.8% |
| Corning, CA | 7,589 | 37% | 23.8% |
| Yreka, CA | 7,589 | 34% | 28.3% |
| Clear Lake, IA | 7,594 | 73% | 52.4% |
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