I live in WI. No, we are not lily white and even the rural areas that used to be so are experiencing an influx of urban minorities. This is after the influx of Somalis and Hmong brought in a decade or so ago by the churches. So, in towns of 50k or so, we now have Hmong gangs fighting black gangs. In the town nearest us, population 4k, there are enough blacks that it is no longer a rarity. I hear the social workers in Milwaukee and Madison advise the single moms that 1) it is safer here and 2) the benefits are better.
Well....according to wikipedia.com....WI is a whopping 83.3% non-hispanic white making it much more white than even MA or CT. California is sub-saharan Africa compared to WI!