| Index | Greene | Iowa | National |
| Average Test Scores | 65% | 69% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 2 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Greene | Iowa | National |
| Completed 8th grade | 88.3% | 89.2% | 84.3% |
| Completed high school | 84.6% | 87.7% | 83.0% |
| Completed some college | 52.2% | 59.8% | 59.4% |
| Completed associate degree | 34.2% | 38.4% | 38.5% |
| Completed bachelors | 17.2% | 27.2% | 30.3% |
| Completed masters | 3.1% | 8.7% | 11.5% |
| Completed professional degree | 0.7% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Greene. Using the proficiency score averages, the average test scores for Greene, IA schools is 65%. The average student to teacher ratio is 12:1. In Greene, IA, an average of 88.3% of students have completed 8th grade and an average of 84.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Shell Rock, IA | 1,646 | 77% | 60.4% |
| Nashua, IA | 1,448 | 76% | 57.8% |
| Clarksville, IA | 1,345 | 75% | 55.2% |
| Rockford, IA | 827 | 75% | 55.2% |
| Allison, IA | 1,134 | 75% | 55.2% |
| Greene, IA | 1,182 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Lyons, OR | 1,182 | 42% | 12.5% |
| Faison, NC | 1,182 | 47% | 2.1% |
| Swifton, AR | 1,182 | 62% | 29.2% |
| Delta Junction, AK | 1,182 | 49% | 2.7% |
| Hampton, NJ | 1,182 | 54% | 13.2% |
| Greene, IA | 1,182 | 65% | 34.4% |
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