Miami Beach, FL population age distribution
A complete breakdown of Miami Beach's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
Age Group | Population | % of Total Population |
---|---|---|
Under 5 years | 4,530 | 5.43% |
5 to 9 years | 3,481 | 4.17% |
10 to 14 years | 2,997 | 3.59% |
15 to 19 years | 3,343 | 4.01% |
20 to 24 years | 3,686 | 4.42% |
25 to 29 years | 6,533 | 7.83% |
30 to 34 years | 7,397 | 8.86% |
35 to 39 years | 7,325 | 8.78% |
40 to 44 years | 6,791 | 8.14% |
45 to 49 years | 6,696 | 8.02% |
50 to 54 years | 6,181 | 7.41% |
55 to 59 years | 5,542 | 6.64% |
60 to 64 years | 4,682 | 5.61% |
65 to 69 years | 4,054 | 4.86% |
70 to 74 years | 3,888 | 4.66% |
75 to 79 years | 2,311 | 2.77% |
80 to 84 years | 1,827 | 2.19% |
85 years and over | 2,205 | 2.64% |
TABLE OF CONTENTS
Miami Beach, FL population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Miami Beach, FL was for the group of age 30-34 years with a population of 7,397 (8.86%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Miami Beach, FL was the 80-84 years with a population of 1,827 (2.19%).
Miami Beach, FL population by age cohort
To better understand the age distribution of Miami Beach, FL's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above

Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 13,039 | 15.62% |
18 to 64 years | 56,145 | 67.26% |
85 years and over | 14,285 | 17.11% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Miami Beach's population under 18 was 15.62%, compared to the 22.51% nationwide.
- Miami Beach's working population (between 18 and 64) was 67.26%, compared to 61.45% nationwide.
- Miami Beach's elderly or the senior population (over 65 age) was 17.11% as compared to 16.04% nationwide.
Miami Beach, FL population pyramid
Population pyramid for Miami Beach, FL is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the Miami Beach's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Miami Beach, FL, is 18.9.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Miami Beach, FL, is 24.6.
- Total dependency ratio for Miami Beach, FL is 43.5.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Miami Beach, FL is 4.1.

Here's the Miami Beach, FL's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 2,531 | 1,999 | 4,530 |
5 to 9 years | 1,410 | 2,071 | 3,481 |
10 to 14 years | 1,247 | 1,750 | 2,997 |
15 to 19 years | 1,699 | 1,644 | 3,343 |
20 to 24 years | 1,639 | 2,047 | 3,686 |
25 to 29 years | 3,380 | 3,153 | 6,533 |
30 to 34 years | 3,674 | 3,723 | 7,397 |
35 to 39 years | 3,954 | 3,371 | 7,325 |
40 to 44 years | 3,790 | 3,001 | 6,791 |
45 to 49 years | 3,792 | 2,904 | 6,696 |
50 to 54 years | 3,444 | 2,737 | 6,181 |
55 to 59 years | 3,035 | 2,507 | 5,542 |
60 to 64 years | 2,471 | 2,211 | 4,682 |
65 to 69 years | 2,162 | 1,892 | 4,054 |
70 to 74 years | 1,692 | 2,196 | 3,888 |
75 to 79 years | 1,024 | 1,287 | 2,311 |
80 to 84 years | 722 | 1,105 | 1,827 |
85 years and over | 823 | 1,382 | 2,205 |
Things to know
What is the population of Miami Beach, FL under 18?
Miami Beach's population under the age of 18 is 13,039, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 15.62% of the total resident population of Miami Beach, FL.
What is the aging population in Miami Beach, FL?
Miami Beach's population aged 65 years and above was 14,285. As per the U.S. Census Bureau's American Community Survey, this population is 17.11% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates