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People Statistics · Area estimate

Median age in St. Johns County

2013 – 2024 · 12 data points 30 of 67 · Regions of Florida Updated Oct 22, 2026

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

Median age, 2013 – 2024 years · St. Johns County · Florida · United States · World
+1.6 since 2014
St. Johns 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
St. Johns County
44.2
Florida
42.6
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 St. Johns County · 2013 – 2024
Latest value 44.2 · 2024
First value 42.5 · 2013
Highest 44.2 · 2024
Lowest 42.5 · 2013
Data points 12

By year

All years · 2013 – 2024

YearSt. Johns County±Change FloridaUnited StatesWorld
2024estimate 44.2 0.3 +0.2 42.6 38.9 —
2023estimate 44.0 0.2 ±0.0 42.6 38.7 30.4
2022estimate 44.0 0.2 +0.2 42.4 38.5 30.1
2021estimate 43.8 0.2 +0.1 42.3 38.4 29.8
2020estimate 43.7 0.2 ±0.0 42.2 — 29.6
2019estimate 43.7 0.3 +0.3 42.0 — 29.3
2018estimate 43.4 0.3 +0.3 41.9 — 29.0
2017estimate 43.1 0.3 +0.2 41.8 — 28.8
2016estimate 42.9 0.3 +0.2 41.6 — 28.5
2015estimate 42.7 0.2 +0.1 41.4 — 28.3
2014estimate 42.6 0.2 +0.1 41.2 — 28.1
2013estimate 42.5 0.2 41.0 — 27.8

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

Ranking · Regions of Florida

2024 · Place 1 is the highest value.

#TerritoryMedian age
66 Alachua County 32.3
57 Baker County 38.1
46 Bay County 41.0
51 Bradford County 40.2
19 Brevard County 46.7
44 Broward County 41.3
42 Calhoun County 42.2
2 Charlotte County 59.9
4 Citrus County 56.9
50 Clay County 40.4
8 Collier County 53.3
49 Columbia County 40.7
34 DeSoto County 43.5
24 Dixie County 46.4
62 Duval County 36.9
58 Escambia County 38.1
9 Flagler County 53.1
10 Franklin County 50.1
38 Gadsden County 42.4
36 Gilchrist County 43.2
25 Glades County 46.0
18 Gulf County 46.9
45 Hamilton County 41.2
64 Hardee County 35.8
65 Hendry County 35.8
…
52 Santa Rosa County 40.1
3 Sarasota County 57.4
53 Seminole County 39.8
30 St. Johns County 44.2
27 St. Lucie County 45.1
1 Sumter County 68.5
41 Suwannee County 42.3
…

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

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.