Counties with most limited voucher use are in southern Iowa 

Number of students using private-school vouchers by county of residence, 2025-26

Statewide, 41,044 students used a private-school voucher. The Iowa Department of Education assigns school districts to counties based on where the district's headquarters are located. Some districts cross county boundaries.
Chart: Common Good IowaSource: Iowa Department of Education, 2025-26 Public School Certified Enrollment by DistrictGet the data Download imageCreated with Datawrapper