Louisiana Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)

Updated on July 8, 2024.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 4.66M Louisiana population, the 25-29yrs age group constituted the highest percentage of the total population (6.96%), followed by the 30-34yrs age group (6.94%), and the 35-39yrs age group (6.90%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (60.85%), followed by Children (0-17yrs) (23.64%), and Seniors (65yrs and Over) (15.51%).

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.

Louisiana Percentages of Population By Age Group in 2021
25-29yrs
30-34yrs
35-39yrs
10-14yrs
55-59yrs
20-24yrs
15-19yrs
5-9yrs
60-64yrs
Under 5yrs
Louisiana Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Louisiana Population By Age Group in 2021
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Age Group Number of People % of Total
25-29yrs 324051 6.96
30-34yrs 323184 6.94
35-39yrs 321257 6.90
10-14yrs 318473 6.84
55-59yrs 309070 6.64
20-24yrs 305708 6.56
15-19yrs 301053 6.46
5-9yrs 300857 6.46
60-64yrs 298236 6.40
Under 5yrs 297359 6.39
50-54yrs 283540 6.09
40-44yrs 279956 6.01
45-49yrs 272115 5.84
65-69yrs 249091 5.35
70-74yrs 194381 4.17
75-79yrs 124273 2.67
85yrs and Over 78925 1.70
80-84yrs 75776 1.63
Louisiana Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 2833776 60.85
Children (0-17yrs) 1101083 23.64
Seniors (65yrs and Over) 722446 15.51