Fernandina Beach city, FL 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 12.70K Fernandina Beach city, FL population, the 70-74yrs age group constituted the highest percentage of the population (10.84%), followed by the 50-54yrs age group (10.14%), and the 65-69yrs age group (9.62%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (55.75%), followed by Seniors (65yrs and Over) (33.50%), and Children (0-17yrs) (10.75%).

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 Florida cities and places, and for Florida.

Data Source: US Census Bureau.
Fernandina Beach city, FL Percentages of Population By Age Group in 2021
70-74yrs
50-54yrs
65-69yrs
60-64yrs
55-59yrs
75-79yrs
25-29yrs
40-44yrs
30-34yrs
35-39yrs
Fernandina Beach city, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Seniors (65yrs and Over)
Children (0-17yrs)
Fernandina Beach city, FL Population By Age Group in 2021
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Age Group Number of People % of Total
70-74yrs 1376 10.84
50-54yrs 1287 10.14
65-69yrs 1222 9.62
60-64yrs 1218 9.59
55-59yrs 1206 9.50
75-79yrs 912 7.18
25-29yrs 593 4.67
40-44yrs 536 4.22
30-34yrs 532 4.19
35-39yrs 525 4.14
Under 5yrs 503 3.96
20-24yrs 500 3.94
80-84yrs 486 3.83
15-19yrs 451 3.55
45-49yrs 445 3.51
10-14yrs 331 2.61
5-9yrs 317 2.50
85yrs and Over 257 2.02
Fernandina Beach city, FL Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 7079 55.75
Seniors (65yrs and Over) 4253 33.50
Children (0-17yrs) 1365 10.75