Counties in Pennsylvania by median age on 1 July (US county estimates)

Sullivan County had the highest median age on 1 July (US county estimates) of 67 counties in 2014, at 51.3 years. Centre County had the lowest, at 29.7 years. The median was 43.2 years. Source: the U.S. Census Bureau.

Highest51.3Sullivan County

Lowest29.7Centre County

Median43.267 counties

Top 40 counties, 2014

years. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2014 years	Change on 2013
1	Sullivan County	51.3	+0.2
2	Cameron County	49.7	+0.5
3	Wayne County	47.3	+0.3
4	Pike County	46.7	+0.6
4	Susquehanna County	46.7	+0.4
6	Potter County	46.6	+0.9
7	Elk County	46.5	+0.4
8	Warren County	46.4	+0.3
9	Westmoreland County	46.3	+0.3
10	Venango County	45.7	+0.4
11	Armstrong County	45.6	+0.3
12	Somerset County	45.5	+0.3
13	Bedford County	45.4	+0.4
13	Carbon County	45.4	+0.4
15	Beaver County	45	+0.1
16	Lawrence County	44.9	+0.4
17	Cambria County	44.8	+0.2
18	Fayette County	44.7	+0.2
19	Schuylkill County	44.4	+0.4
19	Washington County	44.4	+0.2
21	Montour County	44.2	+0.3
22	Bradford County	44.1	+0.4
22	Clearfield County	44.1	+0.4
22	Fulton County	44.1	+0.6
25	Jefferson County	44	+0.3
25	Northumberland County	44	+0.3
27	Forest County	43.9	+0.2
28	Mercer County	43.8	+0.2
29	Bucks County	43.5	+0.3
29	Mifflin County	43.5	+0.2
29	Wyoming County	43.5	+0.3
32	Luzerne County	43.3	+0.1
32	Tioga County	43.3	+0.3
34	Adams County	43.2	+0.4
34	Blair County	43.2	+0.3
36	Crawford County	42.9	+0.3
36	Perry County	42.9	+0.4
38	Butler County	42.8	+0.2
38	Huntingdon County	42.8	+0.3
40	Juniata County	42.7	+0.4
41	McKean County	42.6	+0.3
42	Lackawanna County	42.5	+0.2
43	Monroe County	42.3	+0.3
44	Greene County	42.2	+0.2
44	Northampton County	42.2	+0.2
46	Clarion County	41.9	+0.4
47	Lebanon County	41.5	0
48	Franklin County	41.4	+0.3
49	Lycoming County	41.3	0
50	Montgomery County	41.2	0
50	York County	41.2	+0.1
52	Allegheny County	40.8	-0.2
52	Cumberland County	40.8	0
54	Columbia County	40.3	+0.3
55	Chester County	40	+0.1
56	Berks County	39.9	+0.1
56	Dauphin County	39.9	+0.1
58	Snyder County	39.8	+0.2
59	Lehigh County	39.7	0
60	Indiana County	39.3	+0.3
61	Erie County	39.2	+0.3
62	Clinton County	39.1	+0.6
63	Delaware County	38.9	0
63	Union County	38.9	+0.2
65	Lancaster County	38.6	+0.1
66	Philadelphia County	33.9	+0.2
67	Centre County	29.7	+0.2

Other periods

About this ranking

Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.

Counties only: the county file has no state or national medians, and medians cannot be added up. A single-year estimate, unlike median_age, which for US places is a five-year American Community Survey estimate.

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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. 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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (Counties in Pennsylvania by median age on 1 July (US county estimates), 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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Pennsylvania by median age on 1 July (US county estimates), 2014. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Counties in Pennsylvania by median age on 1 July (US county estimates), 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/median-age-july-1-us-counties/pennsylvania-counties?period=2014.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Pennsylvania by median age on 1 July (US county estimates), 2014 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/median-age-july-1-us-counties/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: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Pennsylvania by median age on 1 July (US county estimates), 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/median-age-july-1-us-counties/pennsylvania-counties?period=2014. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. 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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Pennsylvania by median age on 1 July (US county estimates), 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/median-age-july-1-us-counties/pennsylvania-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/pennsylvania-counties?period=2014.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/median-age-july-1-us-counties/pennsylvania-counties?period=2014" width="760" height="500" title="Counties in Pennsylvania by median age on 1 July (US county estimates), 2014, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Pennsylvania by median age on 1 July (US county estimates) using official data, and cite the source.

rank_places {"indicator":"median_age_pep","level":"province","within":"Pennsylvania","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=median_age_pep&level=province&within=Pennsylvania&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest median age on 1 July (US county estimates)?

Sullivan County, with 51.3 years in 2014, according to the U.S. Census Bureau.

Which county has the lowest median age on 1 July (US county estimates)?

Centre County, with 29.7 years 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: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.