Key Biscayne, FL Population by Age

The median age in Key Biscayne, FL is 41.7, as per 2021 ACS 5-Year Estimates. Of the total population, 25.52% were under the age of 15, 15.35% aged 15 to 29, 44.84% aged 30 to 64, 12.87% aged 65 to 84, and 1.42% were 85 years of age and older.
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Updated Sep 17, 2023

Key Biscayne, FL population age distribution

A complete breakdown of Key Biscayne'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 636 4.38%
5 to 9 years 1,047 7.21%
10 to 14 years 2,025 13.94%
15 to 19 years 1,289 8.87%
20 to 24 years 613 4.22%
25 to 29 years 329 2.26%
30 to 34 years 259 1.78%
35 to 39 years 743 5.11%
40 to 44 years 952 6.55%
45 to 49 years 1,702 11.71%
50 to 54 years 1,333 9.17%
55 to 59 years 827 5.69%
60 to 64 years 699 4.81%
65 to 69 years 381 2.62%
70 to 74 years 678 4.67%
75 to 79 years 412 2.84%
80 to 84 years 399 2.75%
85 years and over 206 1.42%
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Key Biscayne, FL population by age group

Key stats
5,610
Population under 25 years
2,283
Population aged 25-44
4,561
Population aged 45-64
2,076
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The graph shows Key Biscayne's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
Key Biscayne, FL population by age group. The largest age group was 10-14 years with a poulation of 2,025 (13.94% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Key Biscayne, FL was for the group of age 10-14 years with a population of 2,025 (13.94%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Key Biscayne, FL was the 85+ years with a population of 206 (1.42%).

Key Biscayne, FL population by age cohort

To better understand the age distribution of Key Biscayne, 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
The pie chart shows Key Biscayne's population divided into segments, with each segment representing an age cohort. The area of each segment is in the same proportion of a circle as the population of the cohort is of the total population.
Key Biscayne, FL population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). The largest age group was 18 - 64 years with a poulation of 7,760 (53.41% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 4,694 32.31%
18 to 64 years 7,760 53.41%
85 years and over 2,076 14.29%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Key Biscayne's population under 18 was 32.31%, compared to the 22.51% nationwide.
  • Key Biscayne's working population (between 18 and 64) was 53.41%, compared to 61.45% nationwide.
  • Key Biscayne's elderly or the senior population (over 65 age) was 14.29% as compared to 16.04% nationwide.

Key Biscayne, FL population pyramid

Population pyramid for Key Biscayne, 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 Key Biscayne's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Key Biscayne, FL, is 42.4.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Key Biscayne, FL, is 23.7.
  • Total dependency ratio for Key Biscayne, FL is 66.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Key Biscayne, FL is 4.2.
The graph shows Key Biscayne's population across different age group and gender, with population on x-axis and population y-axis. The male population is plotted on the left in blue color whereas the female population is plotted on the right in pink color.
Key Biscayne, FL population pyramid i.e. Key Biscayne population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Key Biscayne, FL's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 319 317 636
5 to 9 years 510 537 1,047
10 to 14 years 1,142 883 2,025
15 to 19 years 712 577 1,289
20 to 24 years 306 307 613
25 to 29 years 210 119 329
30 to 34 years 51 208 259
35 to 39 years 418 325 743
40 to 44 years 411 541 952
45 to 49 years 758 944 1,702
50 to 54 years 640 693 1,333
55 to 59 years 407 420 827
60 to 64 years 388 311 699
65 to 69 years 122 259 381
70 to 74 years 243 435 678
75 to 79 years 157 255 412
80 to 84 years 208 191 399
85 years and over 79 127 206
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Things to know

What is the population of Key Biscayne, FL under 18?

Key Biscayne's population under the age of 18 is 4,694, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 32.31% of the total resident population of Key Biscayne, FL.

What is the aging population in Key Biscayne, FL?

Key Biscayne's population aged 65 years and above was 2,076. As per the U.S. Census Bureau's American Community Survey, this population is 14.29% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Key Biscayne, FL Age Group Population Dataset: A complete breakdown of Key Biscayne age demographics from 0 to 85 years, distributed across 18 age groups
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Key Biscayne population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Key Biscayne. The dataset can be utilized to understand the population distribution of Key Biscayne by age. For example, using this dataset, we can identify the largest age group in Key Biscayne.

Key observations

The largest age group in Key Biscayne, FL was for the group of age 10-14 years with a population of 2,025 (13.94%), according to the 2021 American Community Survey. At the same time, the smallest age group in Key Biscayne, FL was the 85+ years with a population of 206 (1.42%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Key Biscayne population by age group

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group in consideration
  • Population: The population for the specific age group in the Key Biscayne is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Key Biscayne total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Key Biscayne Population by Age. You can refer the same here

Key Biscayne, FL Age Cohorts Dataset: Children, Working Adults, and Seniors in Key Biscayne - Population and Percentage Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Key Biscayne population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of Key Biscayne. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was $b3_v1 with a poulation of $b3_v2 ($b3_v3 of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Key Biscayne population by age cohort

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age cohorts:

  • Under 18 years
  • 18 to 64 years
  • 65 years and over

Variables / Data Columns

  • Age Group: This column displays the age cohort for the Key Biscayne population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Key Biscayne is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Key Biscayne is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Key Biscayne Population by Age. You can refer the same here

Key Biscayne, FL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Key Biscayne, FL population pyramid, which represents the Key Biscayne population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Key Biscayne, FL, is 42.4.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Key Biscayne, FL, is 23.7.
  • Total dependency ratio for Key Biscayne, FL is 66.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Key Biscayne, FL is 4.2.

Key Biscayne population pyramid

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group for the Key Biscayne population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Key Biscayne for the selected age group is shown in the following column.
  • Population (Female): The female population in the Key Biscayne for the selected age group is shown in the following column.
  • Total Population: The total population of the Key Biscayne for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Key Biscayne Population by Age. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

About the author

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Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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