Photo source: Daily Dodge
Census counting of prisoners becomes partisan battleground. (Wisconsin State Journal, 11/18/2019)
State legislative District 53, about 90 minutes northwest of Milwaukee, has a large black population — larger than 74 other state districts, at least on paper. But of the 2,784 African-Americans in the district in the last census, almost 80 percent were incarcerated, according to the Prison Policy Initiative, a nonprofit that wants to end using prisoners for redistricting.
According to the linked report, Waupun Correctional Institution houses 1,257 inmates, of which 742 are African-American. The current estimated population of Waupun is 11,318.
Source: Wisconsin Department of Corrections (arrow added)