[PrtzlLogic]

"The height shows county population."

I considered that at first, but ruled it out after looking at NM. The most populous county in NM is Bernalillo, by a HUGE margin, yet it's only slightly raised and actually shows as lower than some of the other counties. (it went just SLIGHTLY Kerry)

So it has to be some combination of winning vote margin and vote density. But, what the heck do I know. I didn't post it. :o

[Atlas Sneezed]

I considered that at first, but ruled it out after looking at NM. The most populous county in NM is Bernalillo, by a HUGE margin, yet it's only slightly raised and actually shows as lower than some of the other counties. (it went just SLIGHTLY Kerry)

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I still think it is height=population, but I agree that Albuquerque (Bernalillo County) and Reno (Washoe County) appear to be missing. You shouldn't be able to hide 500,000-1,000,000+ people that easily.

[ImpeachandRemove]

Right. it can't be population because Houston doesn't show as very high. It must be winning margin. I think :)