Population growth
Annual percentage change in total population, combining natural increase and net migration.
How it is measured
Year-over-year change in the mid-year population estimate.
Where the number came from
Thomas Malthus published his Essay on the Principle of Population in 1798 arguing that population grows geometrically while food supply grows arithmetically, and the argument has been re-fought roughly once a generation ever since, most recently in the 1960s and 1970s when world population growth peaked at over two percent a year and mass famine was widely forecast. It did not happen at the predicted scale, largely because agricultural yields rose faster than Malthus allowed for and fertility fell faster than the forecasters expected. Global growth has been decelerating since about 1968 and the UN Population Division now projects a peak later this century. The indicator survives that history with its two components intact and worth separating: natural increase, which is births minus deaths and moves slowly, and net migration, which can move very fast indeed.
Worked example: the same growth rate produced two completely different ways
Our 2025 figures put the United Arab Emirates near 4.7 percent and Saudi Arabia near 4.6, with Niger at about 3.2 percent, India at roughly 0.9 and Japan at about minus 0.5. The Gulf figures and the Niger figure are almost the same size and share nothing else. Niger’s growth is natural increase: a fertility rate near 5.8 against falling child mortality, producing a population whose median age is about 15.6 and whose growth is essentially locked in for a generation because the mothers of the next cohort are already born. The Emirati and Saudi rates are dominated by labour migration, which is a policy variable rather than a demographic one; it can reverse within a year if construction slows or visa rules change, and it leaves an age structure skewed towards working-age adults rather than children. Japan at minus 0.5 percent shows the third case, natural decrease with little offsetting migration. The practical lesson is that a population growth rate should never be read on its own. Put it beside the fertility rate and the median age on this site and the mechanism becomes obvious in seconds; read alone, it invites exactly the wrong conclusion about which countries are getting younger.
Figures read from our own population growth table; each row there carries its observation year and whether it came from a live feed or the frozen archive.
Our data source
World Bank WDI (SP.POP.GROW).
Refresh cadence: Annual; taken on each rebuild.
What to watch for
Migration makes this volatile for small countries: a Gulf state construction boom or a refugee flow can swing the rate by whole percentage points.
CIA World Factbook equivalent field: "Population growth rate" (frozen at the January 2026 final edition; our figures continue from live sources).