Seffner 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 8.48K Seffner CDP, FL population, the Under 5yrs age group constituted the highest percentage of the population (9.66%), followed by the 50-54yrs age group (9.39%), and the 40-44yrs age group (7.56%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (60.29%), followed by Children (0-17yrs) (26.70%), and Seniors (65yrs and Over) (13.01%).

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.
Seffner CDP, FL Percentages of Population By Age Group in 2021
Under 5yrs
50-54yrs
40-44yrs
60-64yrs
30-34yrs
20-24yrs
35-39yrs
10-14yrs
55-59yrs
15-19yrs
Seffner CDP, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Seffner CDP, FL Population By Age Group in 2021
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Age Group Number of People % of Total
Under 5yrs 820 9.66
50-54yrs 797 9.39
40-44yrs 641 7.56
60-64yrs 631 7.44
30-34yrs 588 6.93
20-24yrs 572 6.74
35-39yrs 572 6.74
10-14yrs 555 6.54
55-59yrs 551 6.50
15-19yrs 525 6.19
5-9yrs 479 5.65
70-74yrs 408 4.81
45-49yrs 398 4.69
65-69yrs 338 3.98
25-29yrs 251 2.96
80-84yrs 158 1.86
75-79yrs 133 1.57
85yrs and Over 67 0.79
Seffner CDP, FL Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 5115 60.29
Children (0-17yrs) 2265 26.70
Seniors (65yrs and Over) 1104 13.01