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People Statistics · City estimate

Children under 18 in Key Biscayne

2013 – 2024 · 12 data points 11 of 391 · Towns of Florida Updated Oct 23, 2026
People · Key Biscayne Miami-Dade County Florida United States

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024

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Overview 7 figures People 21 figures Economy 20 figures Housing 8 figures Education 10 figures Tourism 3 figures Climate 8 figures
Latest value · 2024 31.8% +1.0 pp since 2023
Towns of Florida · 2024 11 of 391 Place 1 is the highest value.
since 2014 +0.5 pp
vs Miami-Dade County +11.8 pp Miami-Dade County: 20.0% · 2024
Children under 18, 2013 – 2024 percent · Key Biscayne · Miami-Dade County · Florida · United States
+0.5 pp since 2014
Key Biscayne Miami-Dade County Florida United States

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024

Compared with Children under 18 · percent
Key Biscayne
31.8%
Miami-Dade County
20.0%
Florida
19.5%
United States
22.0%

Source: U.S. Census Bureau, American Community Survey 5-year estimates

The series at a glance Key Biscayne · 2013 – 2024
Latest value 31.8% · 2024
First value 32.3% · 2013
Highest 32.3% · 2013
Lowest 26.8% · 2016
Data points 12

By year

All years · 2013 – 2024

YearKey BiscayneChange Miami-Dade CountyFloridaUnited States
2024estimate 31.8% +1.0 pp 20.0% 19.5% 22.0%
2023estimate 30.8% −0.7 pp 20.1% 19.6% 22.2%
2022estimate 31.4% −0.9 pp 20.1% 19.6% 22.1%
2021estimate 32.3% +0.8 pp 20.5% 20.0% 22.5%
2020estimate 31.5% +3.5 pp 20.4% 19.9% —
2019estimate 28.0% +0.4 pp 20.5% 20.0% —
2018estimate 27.7% −0.0 pp 20.4% 20.1% —
2017estimate 27.7% +0.9 pp 20.5% 20.3% —
2016estimate 26.8% −2.2 pp 20.6% 20.4% —
2015estimate 29.0% −2.3 pp 20.9% 20.6% —
2014estimate 31.3% −1.1 pp 21.1% 20.8% —
2013estimate 32.3% 21.4% 21.0% —

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024

Ranking · Towns of Florida

2021 · Place 1 is the highest value.

Year: 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
Highest first Lowest first A–Z
#TerritoryChildren under 18
204 Alva 18.2%
378 Anna Maria 3.1%
325 Apalachicola 10.5%
111 Apollo Beach 22.3%
228 Atlantic Beach 17.2%
340 Atlantis 8.7%
312 Ave Maria 11.4%
218 Aventura 17.5%
43 Bagdad 26.7%
263 Bal Harbour 15.7%
118 Baldwin 21.9%
16 Bay Harbor Islands 30.2%
259 Bay Pines 16.0%
245 Bayonet Point 16.7%
145 Bayshore Gardens 20.9%
62 Bell 25.2%
33 Belle Glade 27.8%
301 Belleair 13.0%
302 Belleair Beach 12.9%
284 Belleair Bluffs 13.7%
126 Bellview 21.5%
242 Beverly Hills 16.8%
222 Big Pine Key 17.4%
2 Biscayne Park 39.4%
100 Bloomingdale 23.0%
…
265 Kendale Lakes 15.6%
169 Kendall 20.1%
256 Kenneth City 16.2%
10 Key Biscayne 32.3%
274 Key Largo 14.6%
277 Key West 14.4%
134 Lake Clarke Shores 21.2%
…

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2021

What it means

The share of residents who are children and teenagers.

How it is calculated

Residents under 18 divided by the total population.