St. Marks city, FL Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, among the 298 St. Marks city, FL population, the 75-79yrs age group constituted the highest percentage of the population (21.48%), followed by the 70-74yrs age group (18.12%), and the 50-54yrs age group (10.07%).
In the case of age cohorts, Seniors (65yrs and Over) constituted the highest percentage of the total population (48.66%), followed by Adults (18-64yrs) (45.97%), and Children (0-17yrs) (5.37%).
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.
| Age Group | Number of People | % of Total |
|---|---|---|
| 75-79yrs | 64 | 21.48 |
| 70-74yrs | 54 | 18.12 |
| 50-54yrs | 30 | 10.07 |
| 65-69yrs | 24 | 8.05 |
| 45-49yrs | 20 | 6.71 |
| 60-64yrs | 20 | 6.71 |
| 55-59yrs | 19 | 6.38 |
| 25-29yrs | 15 | 5.03 |
| 40-44yrs | 13 | 4.36 |
| 10-14yrs | 9 | 3.02 |
| 15-19yrs | 9 | 3.02 |
| Under 5yrs | 5 | 1.68 |
| 20-24yrs | 5 | 1.68 |
| 30-34yrs | 5 | 1.68 |
| 35-39yrs | 3 | 1.01 |
| 80-84yrs | 3 | 1.01 |
| 5-9yrs | 0 | 0.00 |
| 85yrs and Over | 0 | 0.00 |
| Age Cohort | Number of People | % of Total |
|---|---|---|
| Seniors (65yrs and Over) | 145 | 48.66 |
| Adults (18-64yrs) | 137 | 45.97 |
| Children (0-17yrs) | 16 | 5.37 |
