Lilburn city, GA 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 14.42K Lilburn city, GA population, the 5-9yrs age group constituted the highest percentage of the population (13.92%), followed by the 45-49yrs age group (8.20%), and the 40-44yrs age group (7.97%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (53.34%), followed by Children (0-17yrs) (32.09%), and Seniors (65yrs and Over) (14.57%).

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 also see similar information for other Georgia cities and places, and for Georgia.

Data Source: US Census Bureau.
Lilburn city, GA Percentages of Population By Age Group in 2021
5-9yrs
45-49yrs
40-44yrs
35-39yrs
Under 5yrs
10-14yrs
30-34yrs
50-54yrs
15-19yrs
25-29yrs
Lilburn city, GA Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Lilburn city, GA Population By Age Group in 2021
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Age Group Number of People % of Total
5-9yrs 2008 13.92
45-49yrs 1182 8.20
40-44yrs 1150 7.97
35-39yrs 1031 7.15
Under 5yrs 1027 7.12
10-14yrs 966 6.70
30-34yrs 928 6.43
50-54yrs 856 5.94
15-19yrs 811 5.62
25-29yrs 747 5.18
65-69yrs 732 5.08
20-24yrs 632 4.38
55-59yrs 587 4.07
70-74yrs 524 3.63
75-79yrs 515 3.57
60-64yrs 398 2.76
80-84yrs 185 1.28
85yrs and Over 145 1.00
Lilburn city, GA Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 7694 53.34
Children (0-17yrs) 4629 32.09
Seniors (65yrs and Over) 2101 14.57