2026-09-26 · people
One in eight people live in a megacity
Cities over ten million are few — but enormous.
Cities keep growing: a rising share of humanity lives in urban agglomerations of ten million people or more. This grid divides world population (2026 snapshot) into colored bands — Megacity dwellers and Everyone else — using equal squares so you compare shares, not country size on a map.
1 cell = 8.2 million people (0.1% of world population) · 1,000 cells
Context
The 2026 figures from UN megacities put Everyone else at 87.5% of world population and Megacity dwellers at 12.5% — roughly 8.2 billion people in this edition's rounding.
UN megacity population threshold 10M+.
Share and export
Credit this grid as Inagrid — https://inagrid.com/e/2026-09-26-megacities