# Population growth (annual %)

**Definition:** Annual population growth rate for year t is the exponential rate of growth of midyear population from year t-1 to t, expressed as a percentage . Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.

**Description:** The map below shows how Population growth (annual %) varies by country. The shade of the country corresponds to the magnitude of the indicator. The darker the shade, the higher the value. The country with the highest value in the world is Bahrain, with a value of 4.92. The country with the lowest value in the world is Puerto Rico, with a value of -3.98.

**Source:** Derived from total population. Population source: (1) United Nations Population Division. World Population Prospects: 2019 Revision, (2) Census reports and other statistical publications from national statistical offices, (3) Eurostat: Demographic Statist

See also: Country ranking, Time series comparison

More maps: Africa | Asia | Central America & the Caribbean | Europe | Middle East | North America | Oceania | South America | World |

**Statistical Concept and Methodology: **Total population growth rates are calculated on the assumption that rate of growth is constant between two points in time. The growth rate is computed using the exponential growth formula:
r = ln(pn/p0)/n,
where r is the exponential rate of growth, ln() is the natural logarithm, pn is the end period population, p0 is the beginning period population, and n is the number of years in between. Note that this is not the geometric growth rate used to compute compound growth over discrete periods.
For information on total population from which the growth rates are calculated, see total population (SP.POP.TOTL).

**Aggregation method: ** Weighted average

**Periodicity: ** Annual