Waukesha, WI
Washington, WI
Ozaukee, WI
There are still a huge number, and Atlas is being delusional about suburban trends as usual.
Atlas is mostly delusional about Wisconsin. They are in denial that the demographic trends of the state (i.e. an aging, blue-collar, and less educated population) greatly favor the GOP. It doesn't help that Milwaukee is shrinking while its surrounding suburban counties in bold are actually trending Republican. For example: In the 2006 WI gubernatorial election, the R candidate won 64% of the vote in Waukesha County, whereas Scott Walker won 66%. In Ozaukee County in the 2006 gubernatorial race, the R candidate won 62% of the vote, whereas Walker won 64% of the vote share this year. Thus, one can reasonably conclude that WOW IS the only suburban area that's trending R. The D trend between 2014 - 2018 in WOW is temporary. The Republicans in those three counties will come back home for the GOP once Trump leaves office.
Also, Dane is barely growing and Milwaukee doesn't turnout for elections.