Essex 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 804.60K Essex County, MA population, the 55-59yrs age group constituted the highest percentage of the total population (7.69%), followed by the 50-54yrs age group (7.14%), and the 60-64yrs age group (6.71%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (61.62%), followed by Children (0-17yrs) (21.35%), and Seniors (65yrs and Over) (17.04%).

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.

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

55-59yrs

50-54yrs

60-64yrs

15-19yrs

20-24yrs

45-49yrs

10-14yrs

30-34yrs

35-39yrs

25-29yrs

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

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

Essex County, MA Population By Age Group in 2021

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Age Group	Number of People	% of Total
55-59yrs	61837	7.69
50-54yrs	57437	7.14
60-64yrs	54009	6.71
15-19yrs	53247	6.62
20-24yrs	51233	6.37
45-49yrs	51079	6.35
10-14yrs	50666	6.30
30-34yrs	50515	6.28
35-39yrs	49781	6.19
25-29yrs	49387	6.14
40-44yrs	48743	6.06
65-69yrs	46845	5.82
5-9yrs	45089	5.60
Under 5yrs	44484	5.53
70-74yrs	34313	4.26
75-79yrs	21494	2.67
85yrs and Over	19780	2.46
80-84yrs	14659	1.82

Essex County, MA Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	495751	61.62
Children (0-17yrs)	171756	21.35
Seniors (65yrs and Over)	137091	17.04