The author says about turnout: "One clarification: The turnout number at the bottom is slightly wrong: You’d think that you can easily get these statistics for

The author says about turnout: "One clarification: The turnout number at the bottom is slightly wrong: You’d think that you can easily get these statistics for past elections, but I can’t find the turnout number anywhere. Instead I was able to get the population of the counties, so this is the number of votes divided by the population." Isn't this quite inaccurate? I think counties release registered voter numbers, so shouldn't we be instead comparing registered turnout, as votes/registered voters? (yes, some states do allow same-day registration, which might muck up numbers, but I still think its better than just going off population). But anyways, where do the population numbers come from? I imagine they're from the last census, which was in 2010. edit: yes, they are using the census yearly estimates. I suppose that's as accurate as you can get, but its still not a true turnout statistic.