Where do people actually live?

In most countries, half the population crowds onto a tiny share of the land. Each map below splits a country in two with one straight line, half the people on each side, measured from 1 km population data. Then you can try splitting it yourself, in Slice.

Data: GHSL population grid (European Commission JRC, 2025) inside Natural Earth borders. Each page explains how it was measured. More countries are added after they appear in the daily puzzle.