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People Statistics · City estimate

Median age in Marathon

2013 – 2024 · 12 data points 186 of 391 · Towns of Florida Updated Oct 23, 2026
People · Marathon Monroe 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 45.6years ±0.0 since 2023 ± 3.9 · margin of error
Towns of Florida · 2024 186 of 391 Place 1 is the highest value.
since 2014 +4.7
vs Monroe County −3.6 Monroe County: 49.2 · 2024
Median age, 2013 – 2024 years · Marathon · Monroe County · Florida · United States · World
+4.7 since 2014
Marathon Monroe 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
Marathon
45.6
Monroe County
49.2
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 Marathon · 2013 – 2024
Latest value 45.6 · 2024
First value 41.3 · 2013
Highest 48.9 · 2021
Lowest 40.9 · 2014
Data points 12

By year

All years · 2013 – 2024

YearMarathon±Change Monroe CountyFloridaUnited StatesWorld
2024estimate 45.6 3.9 ±0.0 49.2 42.6 38.9 —
2023estimate 45.6 3.7 −1.6 48.9 42.6 38.7 30.4
2022estimate 47.2 4.1 −1.7 48.3 42.4 38.5 30.1
2021estimate 48.9 2.5 +1.2 48.0 42.3 38.4 29.8
2020estimate 47.7 2.9 −0.8 47.9 42.2 — 29.6
2019estimate 48.5 1.8 +1.1 47.7 42.0 — 29.3
2018estimate 47.4 2.9 +3.9 47.3 41.9 — 29.0
2017estimate 43.5 4.4 +1.8 46.7 41.8 — 28.8
2016estimate 41.7 3.4 −0.3 46.7 41.6 — 28.5
2015estimate 42.0 3.9 +1.1 46.8 41.4 — 28.3
2014estimate 40.9 2.9 −0.4 46.7 41.2 — 28.1
2013estimate 41.3 2.8 46.5 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

2015 · 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
55 Alva 58.4
44 Anna Maria 61.4
223 Apalachicola 42.7
205 Apollo Beach 43.4
175 Atlantic Beach 45.7
49 Atlantis 60.2
139 Aventura 48.5
245 Bagdad 41.4
133 Bal Harbour 49.5
360 Baldwin 33.0
241 Bay Harbor Islands 41.6
111 Bay Pines 51.3
124 Bayonet Point 50.2
188 Bayshore Gardens 44.8
359 Bell 33.0
362 Belle Glade 32.6
110 Belleair 51.5
63 Belleair Beach 56.8
89 Belleair Bluffs 53.5
257 Bellview 40.7
136 Beverly Hills 49.3
104 Big Pine Key 52.1
225 Biscayne Park 42.6
251 Bloomingdale 41.0
166 Boca Raton 46.4
…
4 Manasota Key 71.5
363 Mango 32.5
383 Mangonia Park 27.2
235 Marathon 42.0
30 Marco Island 64.6
202 Margate 43.6
152 Mary Esther 47.4
…

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2015

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.