Pennsylvania Demographics Site Map

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Browse Pennsylvania Zip Codes

• Zip Codes by Population

Largest 10 Counties by Population

1. Philadelphia County
2. Allegheny County
3. Montgomery County
4. Bucks County
5. Delaware County
6. Lancaster County
7. Chester County
8. York County
9. Berks County
10. Lehigh County

Largest 10 Cities by Population

1. Philadelphia
2. Pittsburgh
3. Allentown
4. Reading city
5. Erie
6. Upper Darby
7. Scranton
8. Lower Merion
9. Bensalem
10. Abington

Largest 10 Zip Codes by Population

1. 19124
2. 19120
3. 17603
4. 19111
5. 19143
6. 19446
7. 19134
8. 19149
9. 19020
10. 17601

20 Richest Counties in Pennsylvania

1. Chester County
2. Montgomery County
3. Bucks County
4. Delaware County
5. Butler County
6. Northampton County
7. Cumberland County
8. Lancaster County
9. Montour County
10. Lehigh County
11. Allegheny County
12. Washington County
13. Pike County
14. Monroe County
15. York County
16. Berks County
17. Union County
18. Centre County
19. Dauphin County
20. Adams County

20 Richest Cities in Pennsylvania

1. Sewickley Heights
2. Fox Chapel
3. Edgeworth
4. Upper Makefield
5. Rose Valley
6. Birmingham township
7. West Pikeland
8. Lower Merion
9. Charlestown
10. Thornburg
11. Easttown
12. Fairhope
13. West Vincent
14. Buckingham township
15. Chadds Ford
16. Schuylkill township
17. Ben Avon Heights
18. Bell Acres
19. Pocopson
20. Thornbury township