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People
Statistics · Country
estimate
Median age in United States
2021 – 2024 · 4 data points
Updated Oct 22, 2026
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2021 – 2024
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Overview
6 figures
People
18 figures
Economy
18 figures
Housing
6 figures
Education
10 figures
Tourism
3 figures
Climate
3 figures
Latest value · 2024
38.9years
+0.2
since 2023 ± 0.1 · margin of error
First value · 2021
38.4
vs World
+8.5
World: 30.4 · 2023
Median age, 2021 – 2024 years · United States · World
28
30
32
35
38
40
2021
2024
United States
World
Sources: U.S. Census Bureau, American Community Survey 5-year estimates · United Nations, World Population Prospects, 2021 – 2024
Compared with Median age · years
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 United States · 2021 – 2024
Latest value
38.9 · 2024
First value
38.4 · 2021
Highest
38.9 · 2024
Lowest
38.4 · 2021
Data points
4
| Year | United States | ± | Change | World |
|---|---|---|---|---|
| 2024estimate | 38.9 | 0.1 | +0.2 | — |
| 2023estimate | 38.7 | 0.1 | +0.2 | 30.4 |
| 2022estimate | 38.5 | 0.1 | +0.1 | 30.1 |
| 2021estimate | 38.4 | 0.1 | 29.8 |
Sources: U.S. Census Bureau, American Community Survey 5-year estimates · United Nations, World Population Prospects, 2021 – 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.
Population
342M
2025
Population growth
0.52%
2025
Population density
37.3
2025
Children under 15
17.6%
2024
Children under 18
22.0%
2024
Residents 65 and over
17.2%
2024
Life expectancy
79.0
2024
Births per woman
1.63
2024
Birth rate
10.6
2024
Infant mortality
5.5
2024
Net migration
3.9
2023
Born abroad
14.1%
2024