Most parts of Iowa have higher, many times much higher deer densities than WI. I've hunted IA and ILL and in both those states, the areas I have hunted and scouted, usually have higher deer densities than we had in WI before any increase in deer harvest started. Many western states have very high densities too. Often along rivers where ag land meets riverbottom cover, deer densities are extremely high. We've all seen video of hundreds of deer in fields along river bottoms in western states. I've talked to people from the WY and CO game and fish and their deer numbers are plentiful. Mule deer are struggling a bit but that's because of habitat loss or reduced habitat quality. The mule deer densities are changing at the same pace in areas with low CWD rates as they are in areas with high CWD rates, that is, CWD makes no difference in deer populations. High densities or low densities, either way, it makes no difference when you are talking about CWD. Wyoming and Colorado both learned years ago that CWD is not density dependent. Drastic reductions in deer densities has never been shown to reduce prevalence rates of CWD. I've talked to people from the WY and CO game and fish and they have told me what they have learned over decades of studying CWD. You can't believe the WI dnr or anyone when they say that reducing deer densities will lessen the prevalence rate of CWD. The WDNR will tell you what they want you to believe, that CWD is a highly contagious, alway fatal disease that will devastate deer herds if we don't do something to "stop" it. Nothing could be further from the truth.
The areas with higher deer numbers around here are not because of deer moving from more pressure to less pressure, it's from deer reproducing at their normal levels. There are just more deer in some areas now because the landowners and hunters have reduced the number of deer they harvest on purpose because the DNR was out to kill them all. Most areas have drastically reduced deer densities compared to 10 years ago because of unlimited tags and EAB.