Counties in New York by median age

Name: Counties in New York by median age, 2021
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Hamilton County had the highest median age of 62 counties in 2021, at 56.4 years. Tompkins County had the lowest, at 31.8 years. The median was 42.1 years and the figure for New York was 39.2 years. Source: the U.S. Census Bureau.

Highest56.4Hamilton County

Lowest31.8Tompkins County

Median42.162 counties

New York39.2History

Top 40 counties, 2021

CSV Chart (SVG)

years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

Rank	Counties	2021 years
1	Hamilton County	56.4
2	Columbia County	48.9
3	Delaware County	48.5
4	Essex County	48.3
5	Schuyler County	47.1
6	Warren County	46.8
7	Greene County	46.6
8	Schoharie County	45.7
9	Chenango County	44.7
10	Tioga County	44.5
11	Washington County	44.4
12	Fulton County	44.3
12	Herkimer County	44.3
14	Putnam County	44.2
14	Ulster County	44.2
16	Wayne County	43.9
17	Ontario County	43.6
18	Cayuga County	43.3
18	Niagara County	43.3
20	Orleans County	43.2
20	Saratoga County	43.2
22	Steuben County	42.9
23	Chautauqua County	42.8
24	Genesee County	42.6
24	Wyoming County	42.6
26	Dutchess County	42.5
26	Madison County	42.5
26	Seneca County	42.5
29	Cattaraugus County	42.3
29	Sullivan County	42.3
31	Otsego County	42.2
32	Lewis County	42
33	Nassau County	41.8
34	Livingston County	41.7
34	Suffolk County	41.7
36	Chemung County	41.4
37	Westchester County	41.2
38	Yates County	40.9
39	Oneida County	40.8
40	Clinton County	40.7
40	Oswego County	40.7
42	Franklin County	40.6
43	Montgomery County	40.5
44	Richmond County	40.4
45	Erie County	40.2
46	Rensselaer County	40.1
47	Schenectady County	39.9
48	Broome County	39.7
49	Queens County	39.6
50	Onondaga County	39.3
51	Allegany County	39.2
51	Monroe County	39.2
53	St. Lawrence County	39
54	New York County	38.1
55	Albany County	38
56	Orange County	37
57	Cortland County	36.5
58	Kings County	35.7
59	Rockland County	35.6
60	Bronx County	34.8
61	Jefferson County	32.9
62	Tompkins County	31.8

Other periods

2024
2023
2022
2021

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

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. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b01002.dat. Retrieved 2026-10-08.

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Rank Counties in New York by median age using official data, and cite the source.

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Questions

Which county has the highest median age?

Hamilton County, with 56.4 years in 2021, according to the U.S. Census Bureau.

Which county has the lowest median age?

Tompkins County, with 31.8 years in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.