
- Counties: Columbia, Green, Iowa, Rock, and Sauk
- 2019 Population: 345,966 (5.94%)
- Average Vote from Region Percentages: 5.68%
- June 1, 2020 Voter Registration Totals: 195,554 (5.72% of the state totals)
- Race and Ethnicity: 88.55% White, 5.65% Hispanic, 2.71% Black, 1.63% 2+, 1.05% Asian
- Ancestry: 39.54% German, 14.14% Irish, 11.43% Norwegian, 8.53% English, 4.30% Polish
- Median Income: $54,134
- Post-Secondary Attainment: 32.5%

This region is comprised of the counties that make up the Madison–Janesville–Beloit Combined Statistical Area, minus the previously discussed Dane County. This includes Columbia, Green, and Iowa counties which are a part of Madison Metropolitan Statistical Area, Rock County which makes up the Janesville–Beloit Statistical Area, and Sauk County which comprises the Baraboo Micropolitan Statistical Area. It is about eight points whiter than the state as a whole, yet pretty close to the statewide percentages across the major ancestries in Wisconsin. The median income in the region is the closest to the state median, yet its post-secondary degree attainment is a little over six points lower than the state percentage. This puts it in the bottom third group of regions.
The common feature here is their direct exurban connection to the City of Madison and Dane County. Many of the communities in these counties have a large number of commuters that go into Madison for work. All of these counties are in the Madison Media Market and there are strong cultural ties to Dane County, such as a large number of high schools in this region that share sports conferences with schools in Dane County and similar ancestry numbers. There are, however, enough differences that warrant this being its own region rather than being in a region with Dane County. All five counties are more rural than Dane County and have a political culture distinct from the more then Democratic Dane County both historically and in the present day.
One could make the argument that Rock County belongs in the Southeast region as it was also heavily settled by New England Yankees and was once a Republican stronghold. However, it’s direct ties to the Chicagoland area are much less than the rest of the Southeast region. Iowa, Green, and Sauk counties are geographically in the Driftless Region and therefore there is a decent argument that they should be included in the Southwest region. However, the previously discussed connections to the Madison area outweigh the influence the Driftless Area has on these counties. There are also some connections with Columbia County and the Milwaukee Exurbs as there is a large Dutch community that straddles Columbia County and Dodge County centered around the Village of Randolph.
Jefferson County could have been included in this region as many of its western municipalities have a strong connection to Madison. As previously mentioned however, Jefferson County is in the Milwaukee Media Market and the Milwaukee Combined Statistical Area. In addition, Watertown, its largest municipality that it splits with Dodge County, is more orientated towards Milwaukee. It is possible there could come a day where it would make sense to shift Jefferson County to this region due to future population growth, economic connections, and growing cultural ties. Lafayette County was also considered for this region, but it is even more rural than the counties here and has a much stronger connection places in the Southwest region like Platteville in Grant County, which will be explored in more detail in the next breakdown.
Historically this region was traditionally very Republican. The Yankee vote in Rock County, Swiss vote in Green County, and the German/Dutch vote in Sauk and Columbia counties all resulted in these counties typically voting Republican. Only Iowa County had a more Democratic voting tradition that traced its history back to miners from the Upper South settling here in the early history of the state. As these influences began to fade in the mid-Twentieth Century the region became pretty Democratic by the 1990’s and Obama dominated here in both of his elections.
- PVI: D+5
- Presidential Margin: Obama (08) +26%->Obama (12) +21%->Clinton +6%
- 2018 Margin: Evers +15% | Baldwin +22
I would argue that this was the most disappointing region for Hillary Clinton in the 2016. The fifteen-point swing away from what Obama got in 2012 was embarrassing, especially with the hindsight of seeing a strong Democratic bounce back here in 2018. All she needed was a few additional points here and she would have won statewide. One can see in the swing map below that Evers improved on Clinton’s margin almost everywhere in this region. This is the region were Biden needs to expand the most on the 2016 margin and I think he can. The Evers margin would be good but getting closer to Baldwin’s would be even better. If I had to rank the regions in terms of importance for Biden, the Madison exurbs would rank at number one. Trump would be thrilled if he can keep it close to the 2016 margin.
The general rule of thumb here is that all of the major municipalities are pretty Democratic, some more than other. The exception of the City of Reedsburg, which can go Republican, as it did for Trump in 2016. The rural towns are also pretty Democratic compared to other rural areas in the state. For the most part the closer to Madison the town is the more Democratic the town tends to be and vice versa. Most of the towns that border Dane County are Democratic, while most that border either Illinois or other regions (Southeast, Milwaukee Exurbs, and East Central) are Republican.




- 2019 Population: 57,532 (0.99%)
- Average Vote from Region Percentages: 1.00%
- August 1, 2020 Voter Registration Totals: 34,205 (1.00% of the state totals)
- PVI: D+1
- 2016 Presidential Margin: Trump +2%
- 2018 Gubernatorial Margin: Evers +7%
- 2018 Senate Margin: Baldwin +13%
- Municipalities: City of Portage (10,399) Clinton +9%
Columbia County is a county that Democrats have to win in order to win statewide. It’s close to a bellwether, but slightly more crucial to Democrats than Republicans. The Town of Leeds is a place to keep an eye on when the results come in. It almost nailed the margin for both the Gubernatorial and Senate races statewide in 2018. Biden is doing well statewide if he’s winning here. Another place would be the Village of Arlington which almost nailed the statewide numbers in 2016. If Biden is winning Marcellon Town in the northern part of the county, he’s winning big statewide. While Trump would love to continue the rural tend and win every town in the county.

- 2019 Population: 36,960 (0.63%)
- Average Vote from Region Percentages: 0.64%
- August 1, 2020 Voter Registration Totals: 21,616 (0.63% of the state totals)
- PVI: D+3
- 2016 Presidential Margin: Clinton +2%
- 2018 Gubernatorial Margin: Evers +12%
- 2018 Senate Margin: Baldwin +21%
- Municipalities: City of Monroe (10,565) Clinton +7%
Green County, like all of the counties in this region, is another county that Biden needs to improve on Clinton’s margin in. Instead of picking out a single municipality or town to point out, I’m going to advise people look at the second line of towns that go east to west. Hillary Clinton only won the Town of Washington. The minimum here for Biden in Green County is he has to also win the Towns of Adams, Albany, and Mount Pleasant. Team Biden would be thrilled if they could win a few of the towns in the third-row further south like Evers and Baldwin did. Trump would like to limit Biden’s rural town success here to just the towns in the northern tier that border Dane County.

- 2019 Population: 23,678 (0.41%)
- Average Vote from Region Percentages: 0.42%
- August 1, 2020 Voter Registration Totals: 14,197 (0.42% of the state totals)
- PVI: D+10
- 2016 Presidential Margin: Clinton +16%
- 2018 Gubernatorial Margin: Evers +22%
- 2018 Senate Margin: Baldwin +31%
- Municipalities: City of Dodgeville (4,695) Clinton +23
This is yet another county were Biden could like push the margin up. Iowa County is the most rural county in this region and the only one without a municipality in the top 100 list based on population. That said it also has the highest Democratic PVI. The Town of Highland in the western part of the county has been very close to the statewide margin in both the 2016 Presidential race and the 2018 races. The winner of that town is probably winning statewide. Biden is probably winning by double digits statewide if he’s winning the towns in the southwestern corner of the county including Eden, Liden, Mifflin, and Mineral Point. Given the 2016 margins, it’s unlikely Trump could flip any of the towns or municipalities in this county, but even narrowing the margins here would be great sign for him statewide.

- 2019 Population: 163,354 (2.81%)
- Average Vote from Region Percentages: 2.56%
- August 1, 2020 Voter Registration Totals: 88,817 (2.60% of the state totals)
- PVI: D+7
- 2016 Presidential Margin: Clinton +11%
- 2018 Gubernatorial Margin: Evers +19%
- 2018 Senate Margin: Baldwin +26%
- Municipalities: City of Janesville (64,575) Clinton +16%, City of Beloit (36,926) Clinton +25%
Rock County is the most populated and most urban county in this region. As such there is probably more for Biden to gain here. He should be trying to get at least a twenty-point margin here. The place to look at here is the Town of Beloit. Trump won this town by around seven points in 2016, but only narrowly got over 50%. Both Evers and Baldwin won here by around the percentage they won statewide. Biden will want to flip this town. Biden would be running up the score statewide if he can carry the Town of La Prairie southeast of the City of Janesville. Trump is probably on his way to winning by a good statewide margin if he’s flipping the towns of Center and Magnolia in the northwest part of the county.

- 2019 Population: 64,442 (1.11%)
- Average Vote from Region Percentages: 1.07%
- June 1, 2020 Voter Registration Totals: 36,719 (1.07% of the state totals)
- PVI: D+3
- 2016 Presidential Margin: Trump +0%
- 2018 Gubernatorial Margin: Evers +11%
- 2018 Senate Margin: Baldwin +18%
- Municipalities: City of Baraboo (12,165) Clinton +10%, City of Reedsburg (9,521) Trump +8%
Another county that was a rough loss for Hillary Clinton and one that is necessary for Biden to flip if he’s to win in November. The City of Reedsburg is the prime place to look when results come in. Trump won here by eight points in 2016, but both Evers and Baldwin won here by solid margins in 2018. This is a city that Biden has to win. The former Vice President is probably cursing towards a double-digit win if he’s winning the Town of Prairie du Sac in the southeast part of the county. Trump, on the other hand, is probably heading to a strong win if he can flip the last few towns that Hillary Clinton won in the southwest portion of the county: Bear Creek, Franklin, Honey Creek, and Spring Green.












































