Population data typically comes in the context of boundaries. City data. County data. Country data. With their Population Estimate Service, NASA provides data at higher granularity. You can request estimated population in the context of a world grid.
World population estimator and gridded data from NASA
Who is Older and Younger than You
Here’s a chart to show you how long you have until you start to feel your age.
People get married at various ages, but there are definite trends that vary across demographic groups. What do these trends look like?
The Best Data Visualization Projects of 2014
It’s always tough to pick my favorite visualization projects. Nevertheless, I gave it a go.