| Index | Portland | Indiana | National |
| Average Test Scores | 49% | 46% | 48% |
| Student/Teacher ratio | 27:1 | 22:1 | 16:1 |
| Total public schools | 5 | 1,755 | 79,221 |
| Total private schools | n/a | 675 | 24,874 |
| Total post-secondary schools | n/a | 141 | 7,963 |
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| Index | Portland | Indiana | National |
| Completed 8th grade | 75.2% | 84.6% | 84.3% |
| Completed high school | 73.0% | 82.9% | 83.0% |
| Completed some college | 34.9% | 53.8% | 59.4% |
| Completed associate degree | 15.7% | 33.0% | 38.5% |
| Completed bachelors | 7.0% | 24.6% | 30.3% |
| Completed masters | 3.0% | 8.9% | 11.5% |
| Completed professional degree | 0.9% | 2.4% | 3.3% |
| Completed doctorate | 0.9% | 1.0% | 1.3% |
There are a total of 5 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, IN schools is 49%. The average student to teacher ratio is 27:1. In Portland, IN, an average of 75.2% of students have completed 8th grade and an average of 73.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Fort Recovery, OH | 1,714 | 80% | 67.0% |
| Ridgeville, IN | 554 | 62% | 29.2% |
| Albany, IN | 2,365 | 60% | 24.0% |
| Redkey, IN | 1,493 | 55% | 13.5% |
| Bryant, IN | 214 | 50% | 3.1% |
| Portland, IN | 5,972 | 49% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Minot AFB, ND | 5,974 | 60% | 24.0% |
| Salton City, CA | 5,975 | 16% | 66.1% |
| Northville, MI | 5,968 | 68% | 41.4% |
| Otis Orchards-East Farms, WA | 5,968 | 53% | 10.4% |
| Ware, MA | 5,978 | 39% | 19.8% |
| Portland, IN | 5,972 | 49% | 1.0% |
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