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
One Dataset, Visualized 25 Ways
“Let the data speak” they say. But what happens when the data rambles on and on?
Unemployment in America, Mapped Over Time
Watch the regional changes across the country from 1990 to 2016.