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

Hamilton County had the highest median age on 1 July (US county estimates) of 62 counties in 2023, at 58.5 years. Tompkins County had the lowest, at 32.1 years. The median was 42.3 years. Source: the U.S. Census Bureau.

Highest58.5Hamilton County

Lowest32.1Tompkins County

Median42.362 counties

Map of counties, 2023

Under 39
39 to 41
41 to 42
42 to 44
44 to 45
45 and over

years, 2023. 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. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

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	2023 years	Change on 2022
1	Hamilton County	58.5	+0.4
2	Columbia County	50	+0.4
3	Essex County	48.9	+0.3
4	Delaware County	48	-0.1
5	Warren County	47.9	+0.1
6	Schuyler County	47.3	0
7	Greene County	46.7	-0.1
8	Chenango County	45.3	0
9	Washington County	45.2	+0.4
10	Schoharie County	45	+0.1
11	Fulton County	44.9	+0.1
12	Ontario County	44.8	+0.2
13	Ulster County	44.4	+0.1
14	Herkimer County	44.3	0
14	Tioga County	44.3	0
16	Cayuga County	44.1	0
16	Putnam County	44.1	+0.1
18	Wayne County	44	0
19	Saratoga County	43.9	+0.2
20	Niagara County	43.6	+0.1
20	Wyoming County	43.6	+0.1
22	Orleans County	43.4	+0.1
23	Steuben County	43.3	+0.1
24	Genesee County	43.2	-0.4
25	Chautauqua County	43	+0.1
25	Seneca County	43	+0.2
27	Lewis County	42.9	+0.2
28	Cattaraugus County	42.8	+0.2
29	Dutchess County	42.6	+0.1
29	Franklin County	42.6	+0.2
31	Chemung County	42.3	+0.1
31	Livingston County	42.3	+0.2
33	Clinton County	42.2	+0.3
34	Madison County	42.1	-0.1
34	Nassau County	42.1	+0.2
36	Westchester County	41.9	+0.2
37	Suffolk County	41.8	0
38	Sullivan County	41.7	0
38	Yates County	41.7	+0.2
40	Oneida County	41.1	+0.1
41	Oswego County	40.7	+0.2
41	Richmond County	40.7	+0.1
43	Montgomery County	40.4	-0.1
44	Erie County	40.3	+0.2
45	Queens County	40.2	+0.1
45	Rensselaer County	40.2	+0.1
47	Monroe County	40	+0.1
48	Broome County	39.8	+0.1
49	Onondaga County	39.7	+0.2
50	Otsego County	39.6	-0.3
51	St. Lawrence County	39.5	+0.2
52	Schenectady County	39.4	0
53	Albany County	39	0
54	Allegany County	38.6	-0.1
54	Cortland County	38.6	+0.1
56	New York County	37.8	-0.1
57	Orange County	37.1	0
58	Bronx County	36.5	+0.1
59	Kings County	36.2	+0.1
60	Jefferson County	34.2	+0.5
61	Rockland County	33.8	-0.4
62	Tompkins County	32.1	0

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 New York by median age on 1 July (US county estimates), 2023) [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 New York by median age on 1 July (US county estimates), 2023. 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/new-york-counties?period=2023. 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 New York by median age on 1 July (US county estimates), 2023. 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/new-york-counties?period=2023.

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 New York by median age on 1 July (US county estimates), 2023 [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/new-york-counties?period=2023 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_new_york_2023,
  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 New York by median age on 1 July (US county estimates), 2023}},
  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/new-york-counties?period=2023. 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 New York by median age on 1 July (US county estimates), 2023
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/new-york-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/new-york-counties?period=2023.
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

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

Hamilton County, with 58.5 years in 2023, according to the U.S. Census Bureau.

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

Tompkins County, with 32.1 years in 2023.

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.