Drawing Custom Population Polygons / / No Comments Tom Forth’s Population around a Point is one of those wonderfully simple map tools that instantly invites exploration. Click anywhere on the map, choose a radius, and it estimates how many people live within that circle. Under the hood, it uses the Global Human Settlement Layer (GHSL) population grid for 2024, querying population points stored in a massive SQLite database.Now Maps Mania… more → Posted in: Interactive Maps Tagged with: custom, Drawing, Polygons, Population