Drawing is paused while zoomed out. Zoom in to city level to use the tool — Overpass can only handle city-sized areas, not regions or countries.

    BuildingPop

    Population estimate

    Search for a city, zoom in, then Draw area. After closing, drag corners to fix the boundary — use Clear to start over.

    Population —
    Buildings —
    Houses —
    Apartments —
    Comm./Ind. —
    Other —
    Area —
    Reference —
    OSM / reference —

    Population heat
    Low High

    Estimate = (apartment units × occupancy × household size + (houses + other × residential%) × occupancy × household size) × mapped%. Apartment units prefer building:flats; else (footprint m² × levels) ÷ m²/household; else levels (default 1).

    Buildings from OpenStreetMap via Overpass. Queries limited to city-sized areas.