Data / Rankings / Population aged 65 and over / Counties in Pennsylvania

Counties in Pennsylvania by share of population aged 65 and over

Sullivan County had the highest share of population aged 65 and over of 67 counties in 2020, at 30%. Philadelphia County had the lowest, at 14.2%. The median was 21.7% and the figure for Pennsylvania was 19.1%. Source: the U.S. Census Bureau.

Highest30Sullivan County
Lowest14.2Philadelphia County
Median21.767 counties
Pennsylvania19.1History

Top 40 counties, 2020

CSVChart (SVG)

Sullivan CountySullivan County: 30 %30Cameron CountyCameron County: 27.6 %27.6Potter CountyPotter County: 25.3 %25.3Wayne CountyWayne County: 24.7 %24.7Venango CountyVenango County: 23.9 %23.9Warren CountyWarren County: 23.8 %23.8Susquehanna CountySusquehanna County: 23.8 %23.8Westmoreland CountyWestmoreland County: 23.8 %23.8Somerset CountySomerset County: 23.6 %23.6Cambria CountyCambria County: 23.6 %23.6Bedford CountyBedford County: 23.5 %23.5Elk CountyElk County: 23 %23Armstrong CountyArmstrong County: 23 %23Tioga CountyTioga County: 22.9 %22.9Mercer CountyMercer County: 22.9 %22.9Pike CountyPike County: 22.7 %22.7Lawrence CountyLawrence County: 22.7 %22.7Montour CountyMontour County: 22.6 %22.6Fayette CountyFayette County: 22.5 %22.5Blair CountyBlair County: 22.3 %22.3Jefferson CountyJefferson County: 22.3 %22.3Beaver CountyBeaver County: 22.3 %22.3Forest CountyForest County: 22.1 %22.1Crawford CountyCrawford County: 22.1 %22.1Mifflin CountyMifflin County: 22 %22Carbon CountyCarbon County: 22 %22Wyoming CountyWyoming County: 22 %22Fulton CountyFulton County: 22 %22Clearfield CountyClearfield County: 21.9 %21.9Schuylkill CountySchuylkill County: 21.8 %21.8Huntingdon CountyHuntingdon County: 21.8 %21.8Clarion CountyClarion County: 21.7 %21.7Adams CountyAdams County: 21.7 %21.7Washington CountyWashington County: 21.7 %21.7Northumberland CountyNorthumberland County: 21.7 %21.7Bradford CountyBradford County: 21.5 %21.5Juniata CountyJuniata County: 20.9 %20.9McKean CountyMcKean County: 20.8 %20.8Indiana CountyIndiana County: 20.8 %20.8Lebanon CountyLebanon County: 20.8 %20.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2020 (%)
1Sullivan County30
2Cameron County27.6
3Potter County25.3
4Wayne County24.7
5Venango County23.9
6Warren County23.8
7Susquehanna County23.8
8Westmoreland County23.8
9Somerset County23.6
10Cambria County23.6
11Bedford County23.5
12Elk County23
13Armstrong County23
14Tioga County22.9
15Mercer County22.9
16Pike County22.7
17Lawrence County22.7
18Montour County22.6
19Fayette County22.5
20Blair County22.3
21Jefferson County22.3
22Beaver County22.3
23Forest County22.1
24Crawford County22.1
25Mifflin County22
26Carbon County22
27Wyoming County22
28Fulton County22
29Clearfield County21.9
30Schuylkill County21.8
31Huntingdon County21.8
32Clarion County21.7
33Adams County21.7
34Washington County21.7
35Northumberland County21.7
36Bradford County21.5
37Juniata County20.9
38McKean County20.8
39Indiana County20.8
40Lebanon County20.8
41Lackawanna County20.7
42Franklin County20.6
43Clinton County20.6
44Lycoming County20.5
45Luzerne County20.4
46Columbia County20.4
47Greene County20.3
48Perry County20.2
49Butler County20.1
50Northampton County20
51Bucks County19.9
52Cumberland County19.5
53Allegheny County19.5
54Snyder County19.5
55Lancaster County19.2
56Erie County19.1
57Union County19
58Montgomery County18.7
59York County18.5
60Berks County18.1
61Monroe County18
62Lehigh County17.8
63Dauphin County17.6
64Chester County17.3
65Delaware County17.3
66Centre County15.2
67Philadelphia County14.2

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

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Rank Counties in Pennsylvania by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"Pennsylvania","limit":10}
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Questions

Which county has the highest share of population aged 65 and over?

Sullivan County, with 30% in 2020, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Philadelphia County, with 14.2% in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in Pennsylvania: more rankings