Counties in Pennsylvania by population aged 18 to 64

Centre County had the highest population aged 18 to 64 of 67 counties in 2014, at 72.2%. Potter County had the lowest, at 57%. The median was 61.2% and the figure for Pennsylvania was 62.2%. Source: the U.S. Census Bureau.

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Highest72.2Centre County
Median61.267 counties
Pennsylvania62.2History

Map of counties, 2014

Adams County: 61 %Allegheny County: 63.8 %Armstrong County: 60.5 %Beaver County: 60.9 %Bedford County: 58.7 %Berks County: 61.1 %Blair County: 60.3 %Bradford County: 58.6 %Bucks County: 61.9 %Butler County: 62.1 %Cambria County: 60.4 %Cameron County: 58.7 %Carbon County: 60.7 %Centre County: 72.2 %Chester County: 61.7 %Clarion County: 62.3 %Clearfield County: 62.3 %Clinton County: 61.5 %Columbia County: 64.3 %Crawford County: 60 %Cumberland County: 62.4 %Dauphin County: 62.5 %Delaware County: 62.4 %Elk County: 59.9 %Erie County: 62.3 %Fayette County: 61.2 %Forest County: 70.8 %Franklin County: 58.5 %Fulton County: 58.7 %Greene County: 63.9 %Huntingdon County: 62.2 %Indiana County: 64.2 %Jefferson County: 59.4 %Juniata County: 58.5 %Lackawanna County: 61.4 %Lancaster County: 59.5 %Lawrence County: 59.7 %Lebanon County: 58.5 %Lehigh County: 61.4 %Luzerne County: 61.6 %Lycoming County: 61.6 %McKean County: 61.3 %Mercer County: 59.8 %Mifflin County: 57.4 %Monroe County: 63.6 %Montgomery County: 61.6 %Montour County: 59.5 %Northampton County: 62 %Northumberland County: 60.3 %Perry County: 61.4 %Philadelphia County: 65.7 %Pike County: 60.5 %Potter County: 57 %Schuylkill County: 61.1 %Snyder County: 61.3 %Somerset County: 61.2 %Sullivan County: 58.4 %Susquehanna County: 59.9 %Tioga County: 60.4 %Union County: 65.3 %Venango County: 59.5 %Warren County: 59.7 %Washington County: 61.4 %Wayne County: 60.8 %Westmoreland County: 60.5 %Wyoming County: 61.3 %York County: 61.6 %
  • Under 59
  • 59 to 60
  • 60 to 61
  • 61 to 62
  • 62 and over
%, 2014. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2014

Centre County: 72.2 %Centre County72.2Forest County: 70.8 %Forest County70.8Philadelphia County: 65.7 %Philadelphia County65.7Union County: 65.3 %Union County65.3Columbia County: 64.3 %Columbia County64.3Indiana County: 64.2 %Indiana County64.2Greene County: 63.9 %Greene County63.9Allegheny County: 63.8 %Allegheny County63.8Monroe County: 63.6 %Monroe County63.6Dauphin County: 62.5 %Dauphin County62.5Cumberland County: 62.4 %Cumberland County62.4Delaware County: 62.4 %Delaware County62.4Erie County: 62.3 %Erie County62.3Clearfield County: 62.3 %Clearfield County62.3Clarion County: 62.3 %Clarion County62.3Huntingdon County: 62.2 %Huntingdon County62.2Butler County: 62.1 %Butler County62.1Northampton County: 62 %Northampton County62Bucks County: 61.9 %Bucks County61.9Chester County: 61.7 %Chester County61.7Luzerne County: 61.6 %Luzerne County61.6York County: 61.6 %York County61.6Lycoming County: 61.6 %Lycoming County61.6Montgomery County: 61.6 %Montgomery County61.6Clinton County: 61.5 %Clinton County61.5Lackawanna County: 61.4 %Lackawanna County61.4Washington County: 61.4 %Washington County61.4Lehigh County: 61.4 %Lehigh County61.4Perry County: 61.4 %Perry County61.4McKean County: 61.3 %McKean County61.3Snyder County: 61.3 %Snyder County61.3Wyoming County: 61.3 %Wyoming County61.3Fayette County: 61.2 %Fayette County61.2Somerset County: 61.2 %Somerset County61.2Schuylkill County: 61.1 %Schuylkill County61.1Berks County: 61.1 %Berks County61.1Adams County: 61 %Adams County61Beaver County: 60.9 %Beaver County60.9Wayne County: 60.8 %Wayne County60.8Carbon County: 60.7 %Carbon County60.7Centre County: 72.2 %Centre County72.2Forest County: 70.8 %Forest County70.8Philadelphia County: 65.7 %Philadelphia County65.7Union County: 65.3 %Union County65.3Columbia County: 64.3 %Columbia County64.3Indiana County: 64.2 %Indiana County64.2Greene County: 63.9 %Greene County63.9Allegheny County: 63.8 %Allegheny County63.8Monroe County: 63.6 %Monroe County63.6Dauphin County: 62.5 %Dauphin County62.5Cumberland County: 62.4 %Cumberland County62.4Delaware County: 62.4 %Delaware County62.4Erie County: 62.3 %Erie County62.3Clearfield County: 62.3 %Clearfield County62.3Clarion County: 62.3 %Clarion County62.3Huntingdon County: 62.2 %Huntingdon County62.2Butler County: 62.1 %Butler County62.1Northampton County: 62 %Northampton County62Bucks County: 61.9 %Bucks County61.9Chester County: 61.7 %Chester County61.7Luzerne County: 61.6 %Luzerne County61.6York County: 61.6 %York County61.6Lycoming County: 61.6 %Lycoming County61.6Montgomery County: 61.6 %Montgomery County61.6Clinton County: 61.5 %Clinton County61.5Lackawanna County: 61.4 %Lackawanna County61.4Washington County: 61.4 %Washington County61.4Lehigh County: 61.4 %Lehigh County61.4Perry County: 61.4 %Perry County61.4McKean County: 61.3 %McKean County61.3Snyder County: 61.3 %Snyder County61.3Wyoming County: 61.3 %Wyoming County61.3Fayette County: 61.2 %Fayette County61.2Somerset County: 61.2 %Somerset County61.2Schuylkill County: 61.1 %Schuylkill County61.1Berks County: 61.1 %Berks County61.1Adams County: 61 %Adams County61Beaver County: 60.9 %Beaver County60.9Wayne County: 60.8 %Wayne County60.8Carbon County: 60.7 %Carbon County60.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2014 (%)Change on 2013
1Centre County72.2-0.3 pts
2Forest County70.8+0.4 pts
3Philadelphia County65.7-0.1 pts
4Union County65.3-0.3 pts
5Columbia County64.3-0.4 pts
6Indiana County64.2-0.4 pts
7Greene County63.9-0.5 pts
8Allegheny County63.8-0.1 pts
9Monroe County63.6-0 pts
10Dauphin County62.5-0.2 pts
11Cumberland County62.4-0.5 pts
12Delaware County62.4-0.1 pts
13Erie County62.3-0.3 pts
14Clearfield County62.3-0.1 pts
15Clarion County62.3-0.5 pts
16Huntingdon County62.2-0.4 pts
17Butler County62.1-0.2 pts
18Northampton County62-0.2 pts
19Bucks County61.9-0.1 pts
20Chester County61.7-0.2 pts
21Luzerne County61.6-0.1 pts
22York County61.6-0.2 pts
23Lycoming County61.6-0.6 pts
24Montgomery County61.6-0.2 pts
25Clinton County61.5-0.4 pts
26Lackawanna County61.4-0.3 pts
27Washington County61.4-0.2 pts
28Lehigh County61.4-0.2 pts
29Perry County61.4-0.7 pts
30McKean County61.3-0.2 pts
31Snyder County61.3-0.2 pts
32Wyoming County61.3-0.3 pts
33Fayette County61.2-0.2 pts
34Somerset County61.2-0.4 pts
35Schuylkill County61.1-0.4 pts
36Berks County61.1-0.2 pts
37Adams County61-0.4 pts
38Beaver County60.9-0.2 pts
39Wayne County60.8-0.4 pts
40Carbon County60.7-0.2 pts
41Pike County60.50 pts
42Westmoreland County60.5-0.3 pts
43Armstrong County60.5-0.3 pts
44Tioga County60.4-0.4 pts
45Cambria County60.4-0.3 pts
46Northumberland County60.3-0.3 pts
47Blair County60.3-0.3 pts
48Crawford County60-0.3 pts
49Susquehanna County59.9-0.5 pts
50Elk County59.9-0.2 pts
51Mercer County59.8-0.2 pts
52Lawrence County59.7-0.1 pts
53Warren County59.7-0.3 pts
54Venango County59.5-0.4 pts
55Montour County59.5-0.3 pts
56Lancaster County59.5-0.2 pts
57Jefferson County59.4-0.3 pts
58Fulton County58.7-0.6 pts
59Bedford County58.7-0.2 pts
60Cameron County58.7-0.6 pts
61Bradford County58.6-0.4 pts
62Lebanon County58.5-0.4 pts
63Franklin County58.5-0.3 pts
64Juniata County58.5-0.2 pts
65Sullivan County58.4-0.5 pts
66Mifflin County57.4-0.2 pts
67Potter County57-0.5 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Pennsylvania by population aged 18 to 64, 2014) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Pennsylvania by population aged 18 to 64, 2014. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Pennsylvania by population aged 18 to 64, 2014. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Pennsylvania by population aged 18 to 64, 2014 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_pennsylvania_by_2014,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Pennsylvania by population aged 18 to 64, 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Pennsylvania by population aged 18 to 64, 2014
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/pennsylvania-counties?period=2014.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest population aged 18 to 64?

Centre County, with 72.2% in 2014, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Potter County, with 57% in 2014.

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: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in Pennsylvania: more rankings