Keystone 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 25.40K Keystone CDP, FL population, the 55-59yrs age group constituted the highest percentage of the population (10.01%), followed by the 10-14yrs age group (9.25%), and the 60-64yrs age group (8.69%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (59.39%), followed by Children (0-17yrs) (25.30%), and Seniors (65yrs and Over) (15.31%).

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.
Keystone CDP, FL Percentages of Population By Age Group in 2021
55-59yrs
10-14yrs
60-64yrs
45-49yrs
50-54yrs
40-44yrs
15-19yrs
65-69yrs
5-9yrs
30-34yrs
Keystone CDP, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Keystone CDP, FL Population By Age Group in 2021
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Age Group Number of People % of Total
55-59yrs 2542 10.01
10-14yrs 2350 9.25
60-64yrs 2208 8.69
45-49yrs 2161 8.51
50-54yrs 1979 7.79
40-44yrs 1936 7.62
15-19yrs 1916 7.54
65-69yrs 1631 6.42
5-9yrs 1381 5.44
30-34yrs 1308 5.15
Under 5yrs 1248 4.91
70-74yrs 1141 4.49
35-39yrs 1085 4.27
25-29yrs 720 2.84
20-24yrs 676 2.66
75-79yrs 531 2.09
80-84yrs 300 1.18
85yrs and Over 284 1.12
Keystone CDP, FL Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 15084 59.39
Children (0-17yrs) 6426 25.30
Seniors (65yrs and Over) 3887 15.31