| Index | Portland | 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 |
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| Index | Portland | Iowa | National |
| Completed 8th grade | 100.0% | 89.2% | 84.3% |
| Completed high school | 100.0% | 87.7% | 83.0% |
| Completed some college | 18.5% | 59.8% | 59.4% |
| Completed associate degree | 0.0% | 38.4% | 38.5% |
| Completed bachelors | 0.0% | 27.2% | 30.3% |
| Completed masters | 0.0% | 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 Portland. Using the proficiency score averages, the average test scores for Portland, IA schools is n/a. The average student to teacher ratio is n/a. In Portland, IA, an average of 100.0% of students have completed 8th grade and an average of 100.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Manly, IA | 1,480 | 78% | 61.5% |
| Rockford, IA | 827 | 75% | 55.2% |
| Clear Lake, IA | 7,594 | 73% | 52.4% |
| Rockwell, IA | 871 | 67% | 39.6% |
| Nora Springs, IA | 1,648 | 67% | 39.1% |
| Portland, IA | 27 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Slana, AK | 27 | 50% | 4.2% |
| Charles City, VA | 26 | 70% | 45.8% |
| Gerlach, NV | 28 | 50% | 4.2% |
| Macomb, OK | 25 | 34% | 30.2% |
| Mosquero, NM | 29 | 50% | 4.2% |
| Portland, IA | 27 | n/a |
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