Population by broad age groups - Regions in United States
United States: Population by broad age groups - Regions was 341.79 million Persons in 2025. β² Rising
Population by broad age groups - Regions in United States, 1990β2025
Source: Organisation for Economic Co-operation and Development. Measured in Persons.
Analysis
In 2025, population by broad age groups - regions in United States stood at 341.79 million Persons. That is the highest value across all 36 years on record.
That represents a change of up 0.5% on the previous year and up 6.6% over ten years.
Over the whole period, population by broad age groups - regions in United States peaked at 341.79 million Persons in 2025 and was at its lowest, 249.62 million Persons, in 1990.
That places United States 2nd out of 51 countries with data for 2025, putting it in the top 10%.
The long-run direction has been consistently rising across the 36 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 264.54 million Persons | 249.62 million Persons | 279.04 million Persons | 10 |
| 2000s | 294.37 million Persons | 282.16 million Persons | 306.77 million Persons | 10 |
| 2010s | 319.25 million Persons | 309.32 million Persons | 328.24 million Persons | 10 |
| 2020s | 336.07 million Persons | 331.58 million Persons | 341.79 million Persons | 6 |
Countries ranked near United States
More population data for United States
- Population growth rate by level of development 0.129 (2100)
- Projected population under age 5 19.91 million (2100)
- Population density 46.05 (2100)
- Population growth rate 0.129 (2100)
- Fertility and wanted fertility 1.63 (2024)
- Refugee population by country or territory of asylum 435,333 (2024)
- Fertility vs unmet contraception 1.63 (2024)
- Fertility vs contraception 1.63 (2024)
- Natural population growth 0.1985 (2023)
- Fertility rate with projections 1.62 (2023)
Frequently asked questions
- What is population by broad age groups - regions in United States?
- Population by broad age groups - regions in United States was 341.79 million Persons in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest population by broad age groups - regions recorded in United States?
- The highest recorded value was 341.79 million Persons in 2025.
- What is the lowest population by broad age groups - regions recorded in United States?
- The lowest recorded value was 249.62 million Persons in 1990.
- How does United States rank for population by broad age groups - regions?
- United States ranks 2nd out of 51 countries with data for 2025.
- Is population by broad age groups - regions rising or falling in United States?
- Over the last ten years it is up 6.6%. The long-run trend across the full record is rising.
- Where does this United States data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Population by broad age groups - Regions. Statizoid updates them automatically from the source API.
Download this data
CSV Β· JSON β 36 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
<p style="text-align: justify;">This dataset provides population indicators by broad age groups (0-14,15-64, 65 and older), in large regions (TL2) and small regions (TL3).</p> <p><strong>Data definition and source</strong></p> <p style="text-align: justify;">Population data refer to the usual resident population on January 1st for EU countries, Iceland, Israel, Norway, Switzerland and Türkiye. Mid-year population estimates for Australia, Canada, Chile, Colombia, Costa Rica, Korea, Mexico, New Zeland, United Kingdom and the United States. October 1st for Japan. Data is collected from Eurostat (reg_dem) for EU countries and via delegates of the OECD Working Party on Territorial Indicators (WPTI), as well as from national statistical offices' websites.</p> <p><strong>Definition of regions</strong></p> <p style="text-align: justify;">Regions are subnational units below national boundaries. OECD countries have two regional levels: large regions (territorial level 2 or TL2) and small regions (territorial level 3 or TL3). For more information, see the OECD Territorial grid <a href="https://webfs-cfe.oecd.org/files/.Stat/region/OECD_territorial-grid_TL2024.pdf">(pdf)</a> and the OECD Territorial Correspondence Table <a href="https://webfs-cfe.oecd.org/files/.Stat/region/OECD%20Territorial%20correspondence%20-%20TL2024c.xlsx">(xlsx)</a>. </p> <p><strong>Use of data on small regions</strong></p> <p style="text-align: justify;">When demographic data are analysed along with economic data using the TL3 level, it is advisable to aggregate data at the metropolitan region level when several TL3 regions are associated to the same metropolitan region. Metropolitan regions combine TL3 regions when 50% or more of the regional population live in a functionnal urban areas above 250 000 inhabitants. This approach corrects the distortions created by commuting, see the list of OECD metropolitan regions <a href="https://webfs-cfe.oecd.org/files/.Stat/region/OECD%20Territorial%20correspondence%20-%20TL2024c.xlsx">(xlsx)</a> and the EU methodology <a href="https://ec.europa.eu/eurostat/web/metropolitan-regions/background">(link)</a>.</p> <p><strong>Territorial typologies</strong></p> <p style="text-align: justify;">Small TL3 regions are categorized based on shared characteristics into regional typologies. See the demographic indicators aggregated by territorial typology at country level on the access to City typology <a href="https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_REG_DEMO%40DF_REGION_TYPE_METRO&df[ag]=OECD.CFE.EDS&df[vs]=1.0">(link)</a> and by urban-rural typology <a href="https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_REG_DEMO%40DF_REGION_TYPE_RURB&df[ag]=OECD.CFE.EDS&df[vs]=1.0">(link)</a>. </p><p><strong>Cite this dataset</strong></p> <p>OECD Regions, Cities and Local Areas database <a href="http://oe.cd/geostats">http://oe.cd/geostats</a>.</p> <p><strong>Further information</strong></p> <ul> <li><a href="https://regions-cities-atlas.oecd.org/">OECD Regions and Cities Statistical Atlas</a> </li> <li><a href="https://www.oecd.org/en/publications/oecd-regions-and-cities-at-a-glance-2024_f42db3bf-en.html">OECD Regions and Cities at a Glance</a></li> </ul> <p>For questions and/or comments, please email <a href="mailto:RegionStat@oecd.org">RegionStat@oecd.org</a>.</p>