The district includes historic landmarks such as the Brown County Courthouse, Saint Francis Xavier Cathedral, the site of Fort Howard, the and the University of Wisconsin–Green Bay campus.

[2] The district is represented by Democrat Amaad Rivera-Wagner, since January 2025.

[6] The district has remained centered on the city of Green Bay in all of the various redistricting schemes since 1972, with the exception of the 1982 court-ordered plan which temporarily moved the district to the area of central Fond du Lac and Winnebago counties.

That changed in the 2011 redistricting act, which packed more of Green Bay into the 90th district.

Notable former representatives of the 90th district include Eric Genrich, the current mayor of Green Bay.