How Many People Live Inside?
populationcircle.comDraw any area on Earth and get a population estimate instantly.
Data & Analyticspopulationmapsgeospatialworldpopopen-dataapidemographics
About
How Many People Live Inside? is a free interactive map tool that lets users draw any custom area on a world map and receive a WorldPop-based population estimate for that shape. It supports neighborhoods, cities, countries, or irregular regions. A public API is also available for developers to programmatically query population estimates using GeoJSON polygon geometries.
Problem
It's difficult to quickly estimate how many people live within an arbitrary or irregular geographic boundary.
For
researchers, urban planners, developers, and curious users who need population estimates for custom geographic areas
How it works
Users draw a polygon on an interactive world map (or submit one via API), and the tool calculates a statistical population estimate using the WorldPop Global2 2025 dataset at 100m resolution.
Business model
free
Status
launched