| Rank |
County |
Percentage with High School Diploma |
| 1 |
Montgomery County, Pennsylvania
|
92.9%
|
| 2 |
Centre County, Pennsylvania
|
92.9%
|
| 3 |
Chester County, Pennsylvania
|
92.6%
|
| 4 |
Bucks County, Pennsylvania
|
92.4%
|
| 5 |
Pike County, Pennsylvania
|
92.2%
|
| 6 |
Butler County, Pennsylvania
|
92.2%
|
| 7 |
Allegheny County, Pennsylvania
|
92.0%
|
| 8 |
Westmoreland County, Pennsylvania
|
91.8%
|
| 9 |
Cumberland County, Pennsylvania
|
91.1%
|
| 10 |
Delaware County, Pennsylvania
|
91.0%
|
| 11 |
Beaver County, Pennsylvania
|
90.1%
|
| 12 |
Blair County, Pennsylvania
|
90.0%
|
| 13 |
Elk County, Pennsylvania
|
89.9%
|
| 14 |
Erie County, Pennsylvania
|
89.5%
|
| 15 |
Washington County, Pennsylvania
|
89.5%
|
| 16 |
Warren County, Pennsylvania
|
89.2%
|
| 17 |
Montour County, Pennsylvania
|
89.1%
|
| 18 |
Monroe County, Pennsylvania
|
89.0%
|
| 19 |
Wyoming County, Pennsylvania
|
88.9%
|
| 20 |
McKean County, Pennsylvania
|
88.8%
|
| 21 |
Dauphin County, Pennsylvania
|
88.7%
|
| 22 |
Armstrong County, Pennsylvania
|
88.2%
|
| 23 |
Cambria County, Pennsylvania
|
88.1%
|
| 24 |
Lackawanna County, Pennsylvania
|
87.9%
|
| 25 |
Mercer County, Pennsylvania
|
87.8%
|
| 26 |
Clarion County, Pennsylvania
|
87.7%
|
| 27 |
Susquehanna County, Pennsylvania
|
87.7%
|
| 28 |
Venango County, Pennsylvania
|
87.6%
|
| 29 |
York County, Pennsylvania
|
87.5%
|
| 30 |
Lawrence County, Pennsylvania
|
87.5%
|
| 31 |
Tioga County, Pennsylvania
|
87.4%
|
| 32 |
Luzerne County, Pennsylvania
|
87.4%
|
| 33 |
Northampton County, Pennsylvania
|
87.3%
|
| 34 |
Wayne County, Pennsylvania
|
87.2%
|
| 35 |
Indiana County, Pennsylvania
|
87.0%
|
| 36 |
Columbia County, Pennsylvania
|
87.0%
|
| 37 |
Potter County, Pennsylvania
|
87.0%
|
| 38 |
Sullivan County, Pennsylvania
|
86.9%
|
| 39 |
Carbon County, Pennsylvania
|
86.8%
|
| 40 |
Huntingdon County, Pennsylvania
|
86.6%
|
| 41 |
Jefferson County, Pennsylvania
|
86.5%
|
| 42 |
Cameron County, Pennsylvania
|
86.4%
|
| 43 |
Lycoming County, Pennsylvania
|
86.2%
|
| 44 |
Crawford County, Pennsylvania
|
86.2%
|
| 45 |
Clearfield County, Pennsylvania
|
86.0%
|
| 46 |
Clinton County, Pennsylvania
|
86.0%
|
| 47 |
Lehigh County, Pennsylvania
|
85.8%
|
| 48 |
Bradford County, Pennsylvania
|
85.5%
|
| 49 |
Greene County, Pennsylvania
|
85.4%
|
| 50 |
Perry County, Pennsylvania
|
85.2%
|
| 51 |
Adams County, Pennsylvania
|
85.2%
|
| 52 |
Schuylkill County, Pennsylvania
|
85.0%
|
| 53 |
Northumberland County, Pennsylvania
|
84.9%
|
| 54 |
Lebanon County, Pennsylvania
|
84.9%
|
| 55 |
Franklin County, Pennsylvania
|
84.3%
|
| 56 |
Bedford County, Pennsylvania
|
84.0%
|
| 57 |
Berks County, Pennsylvania
|
83.8%
|
| 58 |
Union County, Pennsylvania
|
83.7%
|
| 59 |
Somerset County, Pennsylvania
|
83.6%
|
| 60 |
Fayette County, Pennsylvania
|
83.3%
|
| 61 |
Lancaster County, Pennsylvania
|
83.3%
|
| 62 |
Fulton County, Pennsylvania
|
82.8%
|
| 63 |
Snyder County, Pennsylvania
|
82.8%
|
| 64 |
Juniata County, Pennsylvania
|
80.9%
|
| 65 |
Mifflin County, Pennsylvania
|
80.9%
|
| 66 |
Forest County, Pennsylvania
|
80.7%
|
| 67 |
Philadelphia County, Pennsylvania
|
80.0%
|