Religions of Largest 20 Countries
This stacked bar chart shows the estimated 2010 religious breakdown of the world’s 20 most populous countries, with each bar segment representing a religion’s population share. Hovering over a bar reveals a tooltip with the exact population count, while hovering over the legend highlights that religion across all countries and dims the others. Built with D3 v3, it uses d3.layout.stack for the stacked layout, d3.svg.axis for scales, and the d3-legend and d3-tip plugins. Data comes from Pew Research’s Global Religious Landscape report.