The headline numbers anchor the conversation. India’s population is approximately 1.48 billion in 2026, compared with 687 million in 1980. The median age is 29.2 years — strikingly young compared with China’s 40.2 — and the annual growth rate has slowed to 0.86%, down from a peak of 2.41% in 1961. Total fertility has dropped to 1.9 children per woman, already below the 2.1 replacement level. India is still adding roughly 12.7 million people per year, but the trajectory has fundamentally changed.

The economic implications are what matter for investors and policymakers. By 2030, India will have 1.04 billion people of working age — nearly a quarter (24.3%) of the entire global increase in workforce over the coming decade will come from India. The working-age share will peak at 68.9% of total population by 2030, and the dependency ratio will hit its historic low of 31.2%. A 2025 paper published in Humanities and Social Sciences Communications estimated that India’s demographic dividend has already contributed approximately 1.9 percentage points per year to economic growth between 1981 and 2021, with the effect strengthening after 2011 before being disrupted by the pandemic.

But there are two crucial caveats that aggregate numbers hide. First, India’s window will close faster than the standard timeline suggests. The Economic Survey 2018-19 projected the demographic dividend would peak around 2041, when the working-age share aged 20-59 reaches 59% — and falling fertility is pulling that date forward. Second, there is no single “India demographic story” anymore: southern states like Kerala and Tamil Nadu are already below replacement fertility and aging rapidly, while northern states like Uttar Pradesh and Bihar continue to drive national population growth. National demographic policy is no longer coherent — a policy suited to Bihar’s needs would be actively harmful in Kerala.

Why it matters: India is the last large emerging market with structurally bullish demographics in the 2025-2040 window. Every other major economy — China, the EU, Japan, South Korea, increasingly the US — is staring down workforce contraction. But the dividend doesn’t cash itself: poorly managed urbanization, informal housing and overstretched infrastructure can convert demographic potential into demographic burden. The next decade in India is essentially a race between job creation and aging.

🔗 Primary source: EY India — India@100: reaping the demographic dividend 🔗 Deep dive: World Population Clock — India Population 2026: Key Facts and Future Outlook