Pennsylvania counties

Medicare Advantage and marketplace plans are set by area, so start with your county. 67 listed.

CountyPopulation (2023 est.)Rank in Pennsylvania
Adams County106,74831
Allegheny County1,224,8252
Armstrong County64,07440
Beaver County165,63121
Bedford County47,35045
Berks County432,8219
Blair County120,27328
Bradford County59,69542
Bucks County645,9844
Butler County198,41319
Cambria County130,66826
Cameron County4,38067
Carbon County65,45838
Centre County157,79523
Chester County549,7847
Clarion County36,97057
Clearfield County77,09036
Clinton County37,60755
Columbia County65,43939
Crawford County82,00135
Cumberland County270,73815
Dauphin County289,23414
Delaware County576,7205
Elk County30,19859
Erie County267,57116
Fayette County123,91527
Forest County6,44965
Franklin County157,85422
Fulton County14,46864
Greene County34,35758
Huntingdon County43,51449
Indiana County83,09434
Jefferson County43,61248
Juniata County23,24361
Lackawanna County216,12317
Lancaster County558,5896
Lawrence County84,47233
Lebanon County144,25224
Lehigh County377,75410
Luzerne County327,38812
Lycoming County112,72429
McKean County39,51953
Mercer County108,50330
Mifflin County45,92247
Monroe County166,05320
Montgomery County868,7423
Montour County17,86062
Northampton County319,09113
Northumberland County90,12032
Perry County46,08346
Philadelphia County1,550,5421
Pike County61,24741
Potter County15,99963
Schuylkill County143,78625
Snyder County39,71752
Somerset County72,19737
Sullivan County5,83466
Susquehanna County38,10954
Tioga County40,84051
Union County42,04250
Venango County49,43144
Warren County37,57256
Washington County210,23218
Wayne County51,26243
Westmoreland County351,16311
Wyoming County25,90260
York County464,6408

Population: U.S. Census Bureau Population Estimates, 2023.

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Reviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.

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Medicare Open Enrollment starts October 15th

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Under 65 · ACA

ACA Open Enrollment opens November 1st

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