Population by Education (percentages) by Congressional District
| District Number | Population Age 25 and Older 1990
| Percent High School Graduates 1990 | Percent with
Bachelor Degree | Percent with Graduate Degree |
| | 7872932 |
38.6 | 11.3 | 6.6 |
| 1 | 345696 |
32.9 | 6.4 | 3.9 |
| 2 | 366961 |
29.3 | 11.8 | 10.1 |
| 3 | 382791 |
37.7 | 8.3 | 4.4 |
| 4 | 385102 |
41.7 | 10.4 | 5.0 |
| 5 | 349989 |
44.4 | 8.9 | 6.3 |
| 6 | 381828 |
42.3 | 8.3 | 4.4 |
| 7 | 382496 |
31.9 | 19.5 | 11.5 |
| 8 | 369663 |
34.1 | 16.5 | 8.6 |
| 9 | 370727 |
46.8 | 6.2 | 3.8 |
| 10 | 375262 |
42.3 | 8.8 | 5.1 |
| 11 | 384811 |
42.4 | 7.9 | 4.8 |
| 12 | 374333 |
46.4 | 6.8 | 3.9 |
| 13 | 389912 |
29.0 | 20.0 | 13.5 |
| 14 | 383617 |
34.2 | 13.2 | 9.4 |
| 15 | 378246 |
36.8 | 11.7 | 6.6 |
| 16 | 357136 |
34.1 | 16.0 | 8.3 |
| 17 | 374185 |
41.9 | 11.0 | 5.4 |
| 18 | 402842 |
37.3 | 13.4 | 7.6 |
| 19 | 370539 |
40.7 | 10.7 | 5.3 |
| 20 | 386900 |
40.2 | 11.4 | 5.8 |
| 21 | 359896 |
43.4 | 9.5 | 5.1 |
Source: U.S. Census Bureau: Census of Population and Housing, Summary Tape Files 1 and 3
Prepared by: The Pennsylvania State Data Center, Penn State Harrisburg