IDA total Population 2026

As of 2025, the total population of countries belonging to the International Development Association (IDA) is estimated at 1,946,800,545. This group of low-income economies has experienced rapid demographic growth, with a 1-year growth rate of 2.12% and a 10-year average annual growth rate of 2.17%.

Population
1,946,800,545
Estimate for 2026
1-year growth
+2.12%
10-year avg growth
+2.17%

Population Trend

Overview

The IDA aggregate comprises the world's poorest countries, many of which are located in Sub-Saharan Africa and South Asia. With a combined population approaching 2 billion, these nations face significant challenges in providing infrastructure, healthcare, and education. The 2.12% annual growth rate in 2025 reflects persistent high fertility rates and declining mortality, contributing to a youthful age structure. Over the past decade, the average growth of 2.17% has added roughly 40 million people each year, straining resources and slowing per-capita income gains. Regional disparities are notable: Sub-Saharan Africa accounts for the majority of IDA population growth, while South Asian IDA members like Bangladesh and Nepal are experiencing slower natural increase. Urbanization is accelerating, but most IDA populations remain rural, with agriculture employing a large share of the workforce. These demographic trends underscore the need for sustained international support and investment in human capital.

FAQ

What is the population of IDA countries in 2025?
The total population of IDA countries in 2025 is 1,946,800,545.
How fast is the IDA population growing?
As of 2025, the annual growth rate is 2.12%, and the 10-year average growth rate is 2.17%.
Which regions are included in IDA total?
IDA includes low-income countries primarily in Sub-Saharan Africa and South Asia, as well as a few in East Asia and the Pacific, Latin America, and the Middle East.
What is the 10-year average growth rate for IDA?
The 10-year average annual growth rate is 2.17%.
Why is IDA population growth important?
Rapid growth in IDA countries poses challenges for economic development, infrastructure, and social services, making international aid and targeted investments crucial.

Data sources & terms