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People Statistics · City estimate

Median age in Key Biscayne

2013 – 2024 · 12 data points 237 of 391 · Towns of Florida Updated Oct 26, 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 42.2years −0.9 since 2023 ± 2.2 · margin of error
Towns of Florida · 2024 237 of 391 Place 1 is the highest value.
since 2014 +1.1
vs Miami-Dade County +1.5 Miami-Dade County: 40.7 · 2024
Median age, 2013 – 2024 years · Key Biscayne · Miami-Dade County · Florida · United States · World
+1.1 since 2014
Key Biscayne Miami-Dade County Florida United States World

Sources: U.S. Census Bureau, American Community Survey 5-year estimates · United Nations, World Population Prospects, 2013 – 2024

Compared with Median age · years
Key Biscayne
42.2
Miami-Dade County
40.7
Florida
42.6
United States
38.9
World
30.4 · 2023

Sources: U.S. Census Bureau, American Community Survey 5-year estimates · United Nations, World Population Prospects

The series at a glance Key Biscayne · 2013 – 2024
Latest value 42.2 · 2024
First value 40.9 · 2013
Highest 44.0 · 2016
Lowest 40.9 · 2013
Data points 12

By year

All years · 2013 – 2024

YearKey Biscayne±Change Miami-Dade CountyFloridaUnited StatesWorld
2024estimate 42.2 2.2 −0.9 40.7 42.6 38.9 —
2023estimate 43.1 3.1 +0.8 40.8 42.6 38.7 30.4
2022estimate 42.3 3.2 +0.6 40.6 42.4 38.5 30.1
2021estimate 41.7 3.0 +0.4 40.4 42.3 38.4 29.8
2020estimate 41.3 2.8 −1.1 40.2 42.2 — 29.6
2019estimate 42.4 1.8 +0.4 39.9 42.0 — 29.3
2018estimate 42.0 1.9 −0.8 39.7 41.9 — 29.0
2017estimate 42.8 1.8 −1.2 39.5 41.8 — 28.8
2016estimate 44.0 1.8 +1.0 39.3 41.6 — 28.5
2015estimate 43.0 1.8 +1.9 39.0 41.4 — 28.3
2014estimate 41.1 1.7 +0.2 38.8 41.2 — 28.1
2013estimate 40.9 1.3 38.5 41.0 — 27.8

Sources: U.S. Census Bureau, American Community Survey 5-year estimates · United Nations, World Population Prospects, 2013 – 2024

Ranking · Towns of Florida

2020 · 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
#TerritoryMedian age
1 Indian River Shores 74.3
2 Manasota Key 72.6
3 The Meadows 71.6
4 Longboat Key 71.3
5 Hutchinson Island South 71.3
6 Sun City Center 71.0
7 Steinhatchee 70.6
8 South Beach 70.4
9 Wabasso Beach 70.4
10 Horseshoe Beach 70.3
11 Palm Beach 69.7
12 Citrus Hills 69.6
13 Pineland 69.2
14 Juno Beach 68.9
15 Venice 68.7
16 Micco 68.6
17 Hillsboro Beach 68.4
18 Highland Beach 68.0
19 Englewood 67.9
20 Zephyrhills West 67.8
21 Sanibel 67.5
22 South Pasadena 67.4
23 Bradenton Beach 67.3
24 Siesta Key 67.2
25 Marco Island 66.9
…
246 Kendall 41.4
247 Boynton Beach 41.3
248 Lutz 41.3
249 Key Biscayne 41.3
250 San Antonio 41.3
251 Wellington 41.2
252 Weston 41.2
…

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020

What it means

The age that splits residents into two equal halves — a quick read on whether a place is young or ageing.

How it is calculated

Half the residents are younger and half are older than this age, from census or population estimates by age.