These all sound like small population counties. That would mean that the high percentages could represent a small number of people. To test that theory, I looked at Brook County.
Population 7,237 in 2013 and the trend is a declining population (In 1984 the population was 8,797.)
According to the Texas Secretary of State website, in 2014 Brooks County had:
Registered Voters 6,433 Actual Voters 2,146, Percent Voting 33.36%, Early Voters 1,314, Percent Early Voting 20.43%
So, not only do they not have more registered voters than the total population (or are they referring to voting age persons??), only 1/3rd of those registered actually voted.
Let's look at another county - Jim Hogg County
Population 5,245 in 2013 and the trend is stable (1984 the population was 5385)
Registered Voters 3,853, Actual Voters 720, Percent Voting 18.69%, Early Voters 332, Percent Early Voting 8.62%
It doesn't look to me like there's a problem in these counties. I wonder where they're getting their numbers from.
I'd be a lot more concerned about a large county, such as Dallas County, having over-registration, then small rural counties with very low populations.
The Constitution preserves the advantage of being armed which Americans possess over the people of almost every other nation where the governments are afraid to trust the people with arms. James Madison
NRA Life Member Texas Firearms Coalition