Wisconsin DPI, via a kind reader’s email:

Eighty percent of Wisconsin school districts offer 4-year-old kindergarten (4K), educational programming that has been growing throughout the state.
Sixteen school districts opened 4K programs this year. The 333 districts that provide 4K programs are serving 38,075 children, an enrollment increase of more than 4,000 from last year. Of the districts providing 4K, 101 do so through the community approach, which blends public and private resources to allow more options for the care and education of all 4-year-olds.
Licensed teachers provide instruction for all public school district 4K programs. In the community approach, some districts provide a licensed 4K teacher in a private child care setting, some contract with Head Start or the child care setting for the licensed teachers, and others bring child care into the licensed 4K public school program or mesh licensed 4K services with a Head Start program. Wisconsin is one of the nation’s leading models for combining educational and community care services for 4-year-olds.