New York Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 20.11M New York population, the 25-29yrs age group constituted the highest percentage of the total population (7.29%), followed by the 30-34yrs age group (7.16%), and the 55-59yrs age group (6.92%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (62.48%), followed by Children (0-17yrs) (20.97%), and Seniors (65yrs and Over) (16.56%).

The first and second charts below shows the percentage of the population by age group and age cohort respectively. The table below also shows the number and percentages for each age group and age cohort.

You can see similar information for other states, and the United States.

Related Topics: New York ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census - ACS 5-Year Estimates.

New York Percentages of Population By Age Group in 2021

25-29yrs

30-34yrs

55-59yrs

50-54yrs

35-39yrs

60-64yrs

20-24yrs

45-49yrs

15-19yrs

40-44yrs

New York Percentages of Population By Age Cohort in 2021

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

New York Population By Age Group in 2021

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Age Group	Number of People	% of Total
25-29yrs	1465454	7.29
30-34yrs	1439189	7.16
55-59yrs	1392050	6.92
50-54yrs	1345936	6.69
35-39yrs	1324276	6.58
60-64yrs	1311628	6.52
20-24yrs	1297689	6.45
45-49yrs	1251188	6.22
15-19yrs	1243126	6.18
40-44yrs	1221200	6.07
10-14yrs	1207089	6.00
Under 5yrs	1154376	5.74
5-9yrs	1131385	5.63
65-69yrs	1071821	5.33
70-74yrs	858044	4.27
75-79yrs	564442	2.81
85yrs and Over	451506	2.25
80-84yrs	384346	1.91

New York Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	12567190	62.48
Children (0-17yrs)	4217396	20.97
Seniors (65yrs and Over)	3330159	16.56