Bristol County, MA Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)

Updated on June 30, 2024.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 576.07K Bristol County, MA population, the 50-54yrs age group constituted the highest percentage of the total population (7.31%), followed by the 55-59yrs age group (7.25%), and the 60-64yrs age group (6.95%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (62.36%), followed by Children (0-17yrs) (20.82%), and Seniors (65yrs and Over) (16.82%).

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 Massachusetts counties, and for Massachusetts.

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

Bristol County, MA Percentages of Population By Age Group in 2021

50-54yrs

55-59yrs

60-64yrs

45-49yrs

30-34yrs

15-19yrs

10-14yrs

25-29yrs

20-24yrs

35-39yrs

Bristol County, MA Percentages of Population By Age Cohort in 2021

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

Bristol County, MA Population By Age Group in 2021

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Age Group	Number of People	% of Total
50-54yrs	42127	7.31
55-59yrs	41742	7.25
60-64yrs	40045	6.95
45-49yrs	38444	6.67
30-34yrs	37434	6.50
15-19yrs	36789	6.39
10-14yrs	36777	6.38
25-29yrs	36677	6.37
20-24yrs	36505	6.34
35-39yrs	36103	6.27
40-44yrs	35395	6.14
5-9yrs	31285	5.43
65-69yrs	31215	5.42
Under 5yrs	29851	5.18
70-74yrs	25664	4.46
75-79yrs	15873	2.76
85yrs and Over	13591	2.36
80-84yrs	10553	1.83

Bristol County, MA Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	359258	62.36
Children (0-17yrs)	119916	20.82
Seniors (65yrs and Over)	96896	16.82