Turnout in Harris County was only 1.2 million in the last 2 presidential elections
That's awfully low. Lower than I'd have guessed. It's only 28% of the population. I looked it up, in 2008 and 2012, 1.171 and 1.185 million voters voted, respectively. The actual number of registered voters in Harris County is 2062792, which is about 49% of the county population.
For comparison, I looked up lancaster county. There are 323799 registered voters as of September 19. The current estimated county population is about 536624. That means that just over 60% of the population is registered to vote. I had assumed Harris would be lower, but I had no idea what the actual numbers were for either county before I looked them up today.
Just for fun, here is the breakdown of registered voters for Lancaster County as of September 19:
Republican 168739
Democrat 104587
Other 50743
Total 323799
It's interesting to note the changes from Democrat to Republican in 2016 alone: 4570
and from Republican to Democrat in 2016 alone: 3943
I assume that such large numbers were due to the wild primaries this year. Normally, by the time it gets to PA it's a
fait accompli, uninteresting and pre-decided, but this year neither the Democrats nor the Republicans had it settled by April.
I couldn't find a breakdown of registration by party for Harris County. Maybe they don't do it that way in Texas. You can look up voter registration by precinct in Harris county, but it seems tedious and all you get is name, address, and the last time that person voted, but not a political party. Also, it says this in ALL CAPS on the Harris County website where you can look stuff up: "IT IS A CRIMINAL OFFENSE TO USE VOTER REGISTRATION INFORMATION IN CONNECTION WITH ADVERTISING OR PROMOTING COMMERCIAL PRODUCTS OR SERVICES."