| Index | Portland | Texas | National |
| Average Test Scores | 53% | 47% | 48% |
| Student/Teacher ratio | 17:1 | 14:1 | 16:1 |
| Total public schools | 6 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Portland | Texas | National |
| Completed 8th grade | 87.5% | 79.3% | 84.3% |
| Completed high school | 86.1% | 77.8% | 83.0% |
| Completed some college | 64.3% | 57.3% | 59.4% |
| Completed associate degree | 34.0% | 34.9% | 38.5% |
| Completed bachelors | 23.7% | 28.1% | 30.3% |
| Completed masters | 6.9% | 9.6% | 11.5% |
| Completed professional degree | 2.0% | 2.6% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 6 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, TX schools is 53%. The average student to teacher ratio is 17:1. In Portland, TX, an average of 87.5% of students have completed 8th grade and an average of 86.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Port Aransas, TX | 4,306 | 70% | 45.1% |
| Corpus Christi, TX | 338,491 | 47% | 2.7% |
| Sinton, TX | 5,591 | 46% | 4.2% |
| Ingleside, TX | 10,006 | 46% | 5.2% |
| Gregory, TX | 2,302 | 43% | 11.5% |
| Portland, TX | 18,353 | 53% | 11.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Amsterdam, NY | 18,359 | 37% | 22.1% |
| West Columbia, SC | 18,344 | 45% | 6.9% |
| Lackawanna, NY | 18,342 | 54% | 11.5% |
| Elizabeth City, NC | 18,364 | 33% | 30.9% |
| Logansport, IN | 18,342 | 37% | 22.5% |
| Portland, TX | 18,353 | 53% | 11.0% |
Here are the best places to live in Texas
These are the largest cities in Texas
Check out the 10 safest cities in Texas
Check out the 10 most dangerous cities in Texas