Random WI question: why is Columbia County more conservative than Iowa, Green, and Sauk? Is it just somehow less attractive to Madisonites?
That's under more influence from Wisconsin Dells and I bet the staff there are mostly seasonal and thus don't vote in the area.
For those unaware Wisconsin Dells is a bit of a tourist trap "the waterpark capital of the world" and is a frequent weekend getaway destination for people from the Twin Cities, eastern Iowa, Madison, Milwaukee and Chicago during the spring and summer.
Idk, the Dells really aren't too big a proportion of the county's population (less than 10%) and are nearer to bluer parts of the county in Caledonia and Portage.
Map for reference:
As you can see, all of Iowa, Green, and Sauk have robust Biden areas in easy distance of Madison--this is even true of eastern Jefferson which is unlike all the others (and Columbia) in being in hard R eastern WI. Meanwhile areas easily reachable by car along highways in Columbia are Republican.