Grid maps are a useful way to show state-level data, as they give equal visual weight to each state and maintain a bit of geographic location for quicker referencing. Each news organization varies the grid locations ever so slightly. Jane Pong collected a number of them to show the differences in this fun little interactive.
Grid map variations
Chart Type Used
Divorce and Occupation
Some jobs tend towards higher divorce rates. Some towards lower. Salary also probably plays a role.