Pennsylvania...(66)........Pop

12,406,292

. Adams County

98,322

. Allegheny County

1,250,867

. Armstrong County

71,395

. Beaver County

178,601

. Bedford County

50,230

. Berks County

391,640

. Blair County

127,468

. Bradford County

62,569

. Bucks County

617,558

. Butler County

180,663

. Cambria County

148,496

. Cameron County

5,652

. Carbon County

61,194

. Centre County

140,476

. Chester County

465,795

. Clarion County

41,123

. Clearfield County

82,913

. Clinton County

37,486

. Columbia County

65,015

. Crawford County

89,890

. Cumberland County

221,397

. Dauphin County

253,282

. Delaware County

555,040

. Elk County

34,064

. Erie County

282,355

. Fayette County

145,651

. Forest County

4,994

. Franklin County

134,864

. Fulton County

14,641

. Greene County

40,133

. Huntingdon County

45,995

. Indiana County

89,062

. Jefferson County

45,952

. Juniata County

23,391

. Lackawanna County

209,932

. Lancaster County

487,332

. Lawrence County

93,374

. Lebanon County

124,489

. Lehigh County

326,050

. Luzerne County

313,431

. Lycoming County

118,542

. McKean County

44,708

. Mercer County

119,797

. Mifflin County

46,210

. Monroe County

158,925

. Montgomery County

774,029

. Montour County

18,069

. Northampton County

282,554

. Northumberland County

92,879

. Perry County

44,652

. Philadelphia County

1,470,151

. Pike County

54,117

. Potter County

17,950

. Schuylkill County

147,670

. Snyder County

38,112

. Somerset County

79,515

. Sullivan County

6,413

. Susquehanna County

42,047

. Tioga County

41,849

. Union County

42,720

. Venango County

56,285

. Warren County

42,576

. Washington County

205,738

. Wayne County

49,561

. Westmoreland County

368,660

. Wyoming County

28,168

. York County

401,613