Wyoming 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 576.64K Wyoming population, the 35-39yrs age group constituted the highest percentage of the total population (6.90%), followed by the 10-14yrs age group (6.90%), and the 60-64yrs age group (6.81%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (59.94%), followed by Children (0-17yrs) (23.32%), and Seniors (65yrs and Over) (16.74%).

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: Wyoming ACS-5Yrs Estimates, 2021 Topic List.

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

Wyoming Percentages of Population By Age Group in 2021

35-39yrs

10-14yrs

60-64yrs

55-59yrs

30-34yrs

5-9yrs

15-19yrs

25-29yrs

20-24yrs

40-44yrs

Wyoming Percentages of Population By Age Cohort in 2021

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

Wyoming Population By Age Group in 2021

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Age Group	Number of People	% of Total
35-39yrs	39797	6.90
10-14yrs	39782	6.90
60-64yrs	39265	6.81
55-59yrs	38554	6.69
30-34yrs	38412	6.66
5-9yrs	37814	6.56
15-19yrs	37649	6.53
25-29yrs	37324	6.47
20-24yrs	36972	6.41
40-44yrs	35052	6.08
65-69yrs	34959	6.06
Under 5yrs	34262	5.94
50-54yrs	32715	5.67
45-49yrs	32503	5.64
70-74yrs	25538	4.43
75-79yrs	16520	2.87
85yrs and Over	9803	1.70
80-84yrs	9720	1.69

Wyoming Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	345634	59.94
Children (0-17yrs)	134467	23.32
Seniors (65yrs and Over)	96540	16.74