Fastest Growing Populations 2026
population · per 1,000
Central African Republic has the fastest-growing population with a natural growth rate of 36.8 per 1,000 people per year. Natural growth rate is calculated as birth rate minus death rate, excluding net migration. Countries with very young populations and high birth rates tend to dominate the top of this ranking.
Key Insights
The top three countries in fastest growing populations 2026 are: Central African Republic (36.8), Niger (32.7), Somalia, Fed. Rep. (32.6). At the other end of the scale, Monaco (-10.6), Ukraine (-8.1), Japan (-7.6) record the lowest values among countries with data. The median value across 217 countries with data is 7.8.