The U.S. Census Bureau has released revised county population estimates for the nation, providing a fresh snapshot of Texas' population as of July 6, 2012. This interactive visualizes the growth of the senior (65 and older) population in Texas. Fort Bend, Collin, Denton and Williamson counties take the four top spots in senior growth by percentage, and each is estimated to have increased its 65-plus population by at least 19 percent.
Some of these are among the state's most Republican counties; in Collin and Denton counties, Republican votes made up 65 percent and 64 percent of the voting population, respectively.
To use the map, zoom in and click/tap on a county to view its population totals.