Population in United States
United States: Population was 421.28 million people in 2100. ▲ Rising
Population in United States, 2024–2100
Source: UN WPP (2024) – with major processing by Our World in Data. Measured in people.
Analysis
United States recorded 421.28 million people for population in 2100. That is the highest value across all 77 years on record.
Compared with earlier readings it is up 0.1% on the previous year and up 1.6% over ten years.
Over the whole period, population in United States peaked at 421.28 million people in 2100 and was at its lowest, 345.43 million people, in 2024.
That places United States 6th out of 236 countries with data for 2100, putting it in the top 10%.
The long-run direction has been consistently rising across the 77 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2020s | 349.82 million people | 345.43 million people | 354.05 million people | 6 |
| 2030s | 362.44 million people | 355.65 million people | 368.91 million people | 10 |
| 2040s | 375.37 million people | 370.21 million people | 379.97 million people | 10 |
| 2050s | 384.49 million people | 380.85 million people | 388.09 million people | 10 |
| 2060s | 392.97 million people | 388.92 million people | 397.24 million people | 10 |
| 2070s | 402.39 million people | 398.22 million people | 406.32 million people | 10 |
| 2080s | 410.44 million people | 407.08 million people | 413.73 million people | 10 |
| 2090s | 417.68 million people | 414.46 million people | 420.70 million people | 10 |
| 2100s | 421.28 million people | 421.28 million people | 421.28 million people | 1 |
Countries ranked near United States
More population data for United States
- Population growth rate, by level of development 0.1% (2100)
- Number of children under 5, by world region 19.91 million people (2100)
- Population density 46.05 people per km² (2100)
- World population growth 0.1% (2100)
- Total fertility rate vs. wanted fertility rate 1.63 births per woman (2024)
- Refugees by country of asylum 435,333 people (2024)
- Fertility rate vs. unmet need for contraception 1.63 births per woman (2024)
- Total fertility rate vs. contraceptive prevalence 1.63 births per woman (2024)
- Natural population growth rate 0.2% (2023)
- Fertility rate: births per woman 1.62 live births per woman (2023)
Frequently asked questions
- What is population in United States?
- Population in United States was 421.28 million people in 2100, according to UN WPP (2024) – with major processing by Our World in Data.
- What is the highest population recorded in United States?
- The highest recorded value was 421.28 million people in 2100.
- What is the lowest population recorded in United States?
- The lowest recorded value was 345.43 million people in 2024.
- How does United States rank for population?
- United States ranks 6th out of 236 countries with data for 2100.
- Is population rising or falling in United States?
- Over the last ten years it is up 1.6%. The long-run trend across the full record is rising.
- Where does this United States data come from?
- The figures come from UN WPP (2024) – with major processing by Our World in Data, published as part of Population. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 77 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Population by country, available from 10,000 BCE to 2023, based on data and estimates from different sources.