Concealed Handguns in San Antonio: 2009
The Texas Tribune have analyzed a Department of Public Safety database that tracks concealed handgun licenses in Texas. The Tribune have produced a number of Google Maps to show the rates of gun permit ownership and income levels for each county.
My SA News has used the maps and the underlying data to look at how gun permit ownership is tied to income and politics. Overall the My SA News seems to conclude that gun permit ownership is lower in lower income areas because people can't afford the permits rather than that they don't own guns.