I've just finalised two tutorials on mapping grid-based statistics. The tutorials are in Norwegian, but the source code is available in English, and should be easy to follow. Tutorial 1: "Grid-based population data" Mapping grid-based population data of Oslo, Norway, using OpenLayers 3 and D3.js . The user can select an area to see the number of inhabitants. Tutorial | Demo | Source Tutorial 2: "Grid-based statistics in 3D" 3D visualisation of grid-based population data of Oslo, Norway, using Three.js and D3.js . Tutorial | Demo | Source The basemap is from the Norwegian Mapping Authority , and the grid-based population data from Statistics Norway . The tutorials are provided by Project Innovation from GeoForum , a Norwegian non-profit industry organization for individuals and companies/agencies working in mapping, surveying and geographic information. Please notify me if you use these techniques in your own projects!