South Milwaukee will shift to the 20th Assembly District effective January of 2025, after Gov. Tony Evers signed new legislative maps on Monday.
We remain in the 7th Senate District.
Current 21st Assembly District (includes South Milwaukee)
New 20th Assembly District (includes South Milwaukee)
While the change doesn’t officially take place until the new year, South Milwaukee ballots will have residents voting in the 20th Assembly District this August and November, city officials said.
Democratic State Rep. Chris Sinicki currently represents the 20th District, which also includes Cudahy, St. Francis and parts of the City of Milwaukee under the new maps. She told me today she is excited to begin representing South Milwaukee in the legislature, and she plans to run for a new two-year term this fall. Sinicki has been in the Assembly since 1999.
Meanwhile, the 21st Assembly District boundaries shift to add parts of Milwaukee and Greenfield to a district that still includes Oak Creek.
The partisan impact is significant. The Marquette University Law School offers a really good analysis of the overall changes, showing South Milwaukee moves from being part of a Republican district (+4.8% Republican) to a strongly Democratic (+25.2 Democrat) one, under the new maps. Meanwhile, the 21st District shifts from +4.8% Republican to +8.1% Democrat, per the Marquette analysis.
Read more in the Journal Sentinel and Associated Press.
South Milwaukee Blog 
I like the change for SM!!! Greenda
I think it makes sense for South Milwaukee to be part of a state assembly district with its sister suburbs of Cudahy and Saint Francis, with which it has a lot more in common demographically than exurban-yuppie Oak Creek, with whom it shared the 21st district for all those years. Of course, very partisan Republicans in South Milwaukee will detest this change, just as very partisan Democrats detested the previous legislative districting in general.