| | Total Population Ages 25 and Over, 2017-2021 | Persons with High School Diploma or More, 2017-2021 | Persons with Bachelor's Degree or More, 2017-2021 | Percent Completed High School Diploma or More, 2017-2021 | Percent Completed Bachelor's Degree or More, 2017-2021 | High School Completion, Percent of U.S. Average, 2017-2021 | College Completion, Percent of U.S. Average, 2017-2021 |
|
| United States | 225,152,317 | 200,101,961 | 75,808,834 | 88.9% | 33.7% | 100.0% | 100.0% |
| Appalachian Region | 18,199,149 | 16,068,410 | 4,740,162 | 88.3% | 26.0% | 99.3% | 77.4% |
| Maryland | 4,240,795 | 3,849,442 | 1,762,482 | 90.8% | 41.6% | 102.1% | 123.4% |
| Appalachian Maryland | 177,460 | 157,859 | 39,434 | 89.0% | 22.2% | 100.1% | 66.0% |
|
| County |
| Allegany | 48,094 | 43,412 | 9,700 | 90.3% | 20.2% | 101.6% | 59.9% |
| Garrett | 21,496 | 19,437 | 5,311 | 90.4% | 24.7% | 101.7% | 73.4% |
| Washington | 107,870 | 95,010 | 24,423 | 88.1% | 22.6% | 99.1% | 67.2% |
