Key Biscayne village, 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 14.53K Key Biscayne village, FL population, the 10-14yrs age group constituted the highest percentage of the population (13.94%), followed by the 45-49yrs age group (11.71%), and the 50-54yrs age group (9.17%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (53.41%), followed by Children (0-17yrs) (32.31%), and Seniors (65yrs and Over) (14.29%).

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.
Key Biscayne village, FL Percentages of Population By Age Group in 2021
10-14yrs
45-49yrs
50-54yrs
15-19yrs
5-9yrs
40-44yrs
55-59yrs
35-39yrs
60-64yrs
70-74yrs
Key Biscayne village, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Key Biscayne village, FL Population By Age Group in 2021
0 of 0
Age Group Number of People % of Total
10-14yrs 2025 13.94
45-49yrs 1702 11.71
50-54yrs 1333 9.17
15-19yrs 1289 8.87
5-9yrs 1047 7.21
40-44yrs 952 6.55
55-59yrs 827 5.69
35-39yrs 743 5.11
60-64yrs 699 4.81
70-74yrs 678 4.67
Under 5yrs 636 4.38
20-24yrs 613 4.22
75-79yrs 412 2.84
80-84yrs 399 2.75
65-69yrs 381 2.62
25-29yrs 329 2.26
30-34yrs 259 1.78
85yrs and Over 206 1.42
Key Biscayne village, FL Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 7760 53.41
Children (0-17yrs) 4694 32.31
Seniors (65yrs and Over) 2076 14.29