St. Augustine South CDP, 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 5.35K St. Augustine South CDP, FL population, the 55-59yrs age group constituted the highest percentage of the population (9.97%), followed by the 50-54yrs age group (9.36%), and the 60-64yrs age group (9.12%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (62.72%), followed by Seniors (65yrs and Over) (21.72%), and Children (0-17yrs) (15.56%).

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.
St. Augustine South CDP, FL Percentages of Population By Age Group in 2021
55-59yrs
50-54yrs
60-64yrs
35-39yrs
30-34yrs
65-69yrs
25-29yrs
15-19yrs
20-24yrs
Under 5yrs
St. Augustine South CDP, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Seniors (65yrs and Over)
Children (0-17yrs)
St. Augustine South CDP, FL Population By Age Group in 2021
0 of 0
Age Group Number of People % of Total
55-59yrs 534 9.97
50-54yrs 501 9.36
60-64yrs 488 9.12
35-39yrs 475 8.87
30-34yrs 419 7.83
65-69yrs 358 6.69
25-29yrs 344 6.43
15-19yrs 298 5.57
20-24yrs 289 5.40
Under 5yrs 288 5.38
75-79yrs 239 4.46
10-14yrs 225 4.20
80-84yrs 221 4.13
70-74yrs 196 3.66
85yrs and Over 149 2.78
5-9yrs 143 2.67
45-49yrs 136 2.54
40-44yrs 51 0.95
St. Augustine South CDP, FL Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 3358 62.72
Seniors (65yrs and Over) 1163 21.72
Children (0-17yrs) 833 15.56