Overall Population Growth
Between 2015 and 2027, the United States
population is projected to increase by
20.76 million, from
320.93 million to
341.69 million, representing a cumulative growth of approximately
6.47% over 12 years.
Annual Growth Rate
The average annual
growth rate from 2015 to 2027 stands at roughly
0.54%, indicating a steady but modest population increase year over year.
Population growth accelerated slightly in the latter part of the observed period, with an increase from
1.77 million between 2020 and 2021 to
1.72 million between 2026 and 2027, showing a subtle but noticeable uptick in growth speed.
Decadal Growth Comparison
The decade from 2017 to 2027 saw the
United States population grow by
16.41 million, compared to a growth of
2.99 million in the preceding two years (2015 to 2017), highlighting a significant increase in population growth rate when viewed over a longer span.
Largest Year-over-Year Increase
The largest year-over-year population increase occurred between 2024 and 2025, with a growth of
1.69 million, marking the highest absolute annual growth within the dataset.
Smallest Year-over-Year Increase
The smallest year-over-year increase was observed between 2019 and 2020, where the population grew by
2.68 million, the lowest absolute growth, indicating a temporary deceleration in population growth.
Steady Growth Trend
Despite fluctuations in the annual growth rate, the overall trend from 2015 to 2027 shows a consistent increase in the United States population, underscoring a steady growth pattern without any year experiencing a decrease.