Davidson County, TN 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 708.49K Davidson County, TN population, the 25-29yrs age group constituted the highest percentage of the total population (10.39%), followed by the 30-34yrs age group (9.71%), and the 35-39yrs age group (7.73%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (66.88%), followed by Children (0-17yrs) (20.76%), and Seniors (65yrs and Over) (12.36%).

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 Tennessee counties, and for Tennessee.

Davidson County, TN Percentages of Population By Age Group in 2021
25-29yrs
30-34yrs
35-39yrs
20-24yrs
Under 5yrs
40-44yrs
55-59yrs
45-49yrs
15-19yrs
50-54yrs
Davidson County, TN Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Davidson County, TN Population By Age Group in 2021
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Age Group Number of People % of Total
25-29yrs 73628 10.39
30-34yrs 68794 9.71
35-39yrs 54780 7.73
20-24yrs 50165 7.08
Under 5yrs 46175 6.52
40-44yrs 44567 6.29
55-59yrs 43700 6.17
45-49yrs 41524 5.86
15-19yrs 40482 5.71
50-54yrs 40362 5.70
5-9yrs 39962 5.64
10-14yrs 39227 5.54
60-64yrs 37564 5.30
65-69yrs 32142 4.54
70-74yrs 22793 3.22
75-79yrs 13904 1.96
80-84yrs 9683 1.37
85yrs and Over 9038 1.28
Davidson County, TN Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 473829 66.88
Children (0-17yrs) 147101 20.76
Seniors (65yrs and Over) 87560 12.36