Does South Carolina or Arizona have more venomous snakes and which ones are worse?

Texas has the most snakes in the United States but if you want to talk about venomous snakes, you have to look to Arizona, which has — wait for it — 19 of the country’s 20 most dangerous snakes.
That includes 13 rattlesnake species alone, World Atlas says. They most often live in the desert but don’t be shocked if you’re on a putting green on a cloudless Arizona day and you see some sort of rattlesnake lazing in the sun.
How does South Carolina’s crop of snakes compare?
Puny.
South Carolina is home to three types of rattlesnake — Eastern diamondback, timber and pygmy — in addition to copperheads and cottonmouth.
Does South Carolina or Arizona have more venomous snakes and which ones are worse?