Median age on 1 July (US county estimates) in Philadelphia County

Median age on 1 July (US county estimates) in Philadelphia County was 35.7 years in 2025, according to the U.S. Census Bureau. That is up 0.3 from 2024. That is the 66th highest of 67 counties in 2025.

2025, years35.7

Change on 2024+0.3

Rank66th of 67Counties in Pennsylvania ranked

Series high35.72025

Series low33.52010

Next release: Friday, 25 June 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Median age on 1 July (US county estimates) in Philadelphia County, 2010 to 2025

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, published 2026-06-25.

All 16 values

Period	years
2025	35.7
2024	35.4
2023	35.2
2022	35
2021	34.7
2020	34.6
2019	34.6
2018	34.4
2017	34.3
2016	34.1
2015	34
2014	33.9
2013	33.7
2012	33.6
2011	33.5
2010	33.5

Rankings

Counties in Pennsylvania by median age on 1 July (US county estimates) 67 places

Definition

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.

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 (Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025) [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, Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania. 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. Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania.

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, Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania (Accessed: 12 October 2026).

BibTeX

@misc{census_median_age_on_1_2025,
  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: Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025}},
  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/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania. 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: Median age on 1 July (US county estimates), Philadelphia County, 2010 to 2025
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/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/median-age-july-1-us-counties/philadelphia-county-pennsylvania.
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  -

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Questions

What is the median age on 1 July (US county estimates) in Philadelphia County?

Where does this figure come from?

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 by Invokely on 2026-10-12.

What was the highest median age on 1 July (US county estimates) in Philadelphia County?

35.7 years in 2025, the highest value since 2010 in this series.

Related statistics for Philadelphia County

All statistics for Philadelphia County | Philadelphia County in figures