Maryland public school districts ranked by enrollment-weighted state-assessment proficiency across the county. Counties need at least 3 schools and 1,000 students to qualify.
| # | County | State | % Proficient |
|---|---|---|---|
| 1 | Worcester County | MD | 60.3% |
| 2 | Carroll County | MD | 55.7% |
| 3 | Howard County | MD | 54.2% |
| 4 | Calvert County | MD | 53.6% |
| 5 | Frederick County | MD | 51.1% |
| 6 | Harford County | MD | 48.1% |
| 7 | St. Mary's County | MD | 46.7% |
| 8 | Montgomery County | MD | 46.6% |
| 9 | Anne Arundel County | MD | 45.3% |
| 10 | Queen Anne's County | MD | 45.1% |
| 11 | Washington County | MD | 44.8% |
| 12 | Garrett County | MD | 44.1% |
| 13 | Allegany County | MD | 43.3% |
| 14 | Caroline County | MD | 39.5% |
| 15 | Baltimore County | MD | 38.0% |
| 16 | Talbot County | MD | 37.6% |
| 17 | Cecil County | MD | 36.6% |
| 18 | Dorchester County | MD | 36.5% |
| 19 | Kent County | MD | 35.4% |
| 20 | Wicomico County | MD | 34.0% |
| 21 | Charles County | MD | 33.9% |
| 22 | Prince George's County | MD | 30.7% |
| 23 | Baltimore city | MD | 27.6% |
| 24 | Somerset County | MD | 26.2% |