Gainesville 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 138.74K Gainesville city, FL population, the 20-24yrs age group constituted the highest percentage of the population (23.07%), followed by the 15-19yrs age group (11.05%), and the 25-29yrs age group (10.80%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (74.39%), followed by Children (0-17yrs) (14.05%), and Seniors (65yrs and Over) (11.56%).

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.
Gainesville city, FL Percentages of Population By Age Group in 2021
20-24yrs
15-19yrs
25-29yrs
30-34yrs
35-39yrs
40-44yrs
Under 5yrs
65-69yrs
5-9yrs
55-59yrs
Gainesville city, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Gainesville city, FL Population By Age Group in 2021
0 of 0
Age Group Number of People % of Total
20-24yrs 32011 23.07
15-19yrs 15333 11.05
25-29yrs 14985 10.80
30-34yrs 9941 7.17
35-39yrs 7433 5.36
40-44yrs 6192 4.46
Under 5yrs 5801 4.18
65-69yrs 5729 4.13
5-9yrs 5611 4.04
55-59yrs 5442 3.92
60-64yrs 5286 3.81
45-49yrs 4978 3.59
10-14yrs 4901 3.53
50-54yrs 4789 3.45
70-74yrs 4149 2.99
75-79yrs 2428 1.75
85yrs and Over 2312 1.67
80-84yrs 1420 1.02
Gainesville city, FL Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 103213 74.39
Children (0-17yrs) 19490 14.05
Seniors (65yrs and Over) 16038 11.56