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People Statistics · City estimate

Children under 18 in Marathon

2013 – 2024 · 12 data points 136 of 391 · Towns of Florida Updated Oct 28, 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 20.7% +0.5 pp since 2023
Towns of Florida · 2024 136 of 391 Place 1 is the highest value.
since 2014 +1.1 pp
vs Monroe County +5.0 pp Monroe County: 15.7% · 2024
Children under 18, 2013 – 2024 percent · Marathon · Monroe County · Florida · United States
+1.1 pp since 2014
Marathon Monroe County Florida United States

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

Compared with Children under 18 · percent
Marathon
20.7%
Monroe County
15.7%
Florida
19.5%
United States
22.0%

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

The series at a glance Marathon · 2013 – 2024
Latest value 20.7% · 2024
First value 18.9% · 2013
Highest 20.7% · 2024
Lowest 15.6% · 2018
Data points 12

By year

All years · 2013 – 2024

YearMarathonChange Monroe CountyFloridaUnited States
2024estimate 20.7% +0.5 pp 15.7% 19.5% 22.0%
2023estimate 20.2% +1.1 pp 15.6% 19.6% 22.2%
2022estimate 19.0% +2.5 pp 15.7% 19.6% 22.1%
2021estimate 16.5% −2.1 pp 15.5% 20.0% 22.5%
2020estimate 18.6% +1.9 pp 15.3% 19.9% —
2019estimate 16.8% +1.2 pp 15.1% 20.0% —
2018estimate 15.6% −2.2 pp 15.1% 20.1% —
2017estimate 17.8% +0.8 pp 15.1% 20.3% —
2016estimate 17.0% −1.8 pp 15.0% 20.4% —
2015estimate 18.8% −0.7 pp 15.2% 20.6% —
2014estimate 19.6% +0.7 pp 15.1% 20.8% —
2013estimate 18.9% 15.1% 21.0% —

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

Ranking · Towns of Florida

2019 · 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
305 Alva 11.7%
357 Anna Maria 6.1%
210 Apalachicola 17.9%
137 Apollo Beach 20.8%
205 Atlantic Beach 18.1%
314 Atlantis 11.0%
275 Aventura 14.6%
170 Bagdad 19.2%
283 Bal Harbour 13.9%
65 Baldwin 25.0%
26 Bay Harbor Islands 27.9%
279 Bay Pines 14.1%
187 Bayonet Point 18.5%
157 Bayshore Gardens 19.7%
67 Bell 24.7%
38 Belle Glade 26.8%
272 Belleair 14.7%
299 Belleair Beach 11.9%
316 Belleair Bluffs 10.7%
189 Bellview 18.4%
202 Beverly Hills 18.1%
285 Big Pine Key 13.6%
47 Biscayne Park 26.2%
89 Bloomingdale 23.6%
236 Boca Raton 16.8%
…
381 Manasota Key 0.9%
31 Mango 27.3%
4 Mangonia Park 34.4%
239 Marathon 16.8%
339 Marco Island 8.3%
244 Margate 16.6%
124 Mary Esther 21.4%
…

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2019

What it means

The share of residents who are children and teenagers.

How it is calculated

Residents under 18 divided by the total population.