Jill Katherine Underly (born August 2, 1977) is an Americans educator and school system administrator from Iowa County, Wisconsin. She is the superintendent of public instruction of the U.S. state of Wisconsin, elected in the 2021 general election. She previously served as an assistant director in the Wisconsin Department of Public Instruction and served as superintendent of the Pecatonica Area School District.
In 2005, Underly left Indiana and moved to Madison, Wisconsin, where she continued her education at the University of Wisconsin–Madison and worked on the staff for Undergraduate Academic Services in the College of Letters & Sciences. In 2008, she earned her second master's degree and licensure in educational administration. In 2009, Underly was hired by the Wisconsin Department of Public Instruction as an assistant director of the educator licensing team and federal programs education consultant, a position she held until 2014. During these years, she continued her education at the University of Wisconsin, and, in 2012, earned her doctorate in educational leadership and policy analysis.
In 2014, Underly moved to Hollandale, Wisconsin, to become principal of Pecatonica Elementary School. The following year, the Pecatonica Area School Board selected her as school district administrator. During her term, Underly was outspoken for the interests of rural school districts.
Underly topped a field of seven candidates in the February 2021 nonpartisan primary, and went on to defeat former Brown Deer superintendent Deborah Kerr in the April general election. Underly received the endorsements of retired Republican state senator Dale Schultz, Democratic U.S. senator Tammy Baldwin, U.S. representatives Ron Kind, Gwen Moore, and Mark Pocan, former Governor Jim Doyle, and nearly every Democrat in the Wisconsin Legislature. Her opponent, a proponent of voucher school expansion, was endorsed by former U.S. Secretary of Education Arne Duncan and Democratic state senator Lena Taylor.
On April 1, 2025, she was re-elected to another term as state superintendent after successfully defeating education consultant Brittany Kinser.
Dr. Underly and the Wisconsin Department of Public Instruction (DPI) rejected this certification request, citing concerns over its legality and potential infringement on local control of education. In a statement, Underly emphasized, "Wisconsin's schools are already following the law, and we've put that into writing to the USDE. We believe in local control in Wisconsin and trusting our local leaders--superintendents, principals, educators--who work together with parents and families every day to support students."
The risk of losing Title I and other federal funds was tied to a conflict between the Wisconsin DPI and the Trump administration's interpretation of Title VI: The Trump administration's USDE demanded that state education leaders certify their schools' compliance with Title VI, with a new interpretation that certain DEI initiatives constituted illegal discrimination. The DPI and State Superintendent Dr. Jill Underly refused to sign the certification, citing a lack of clarity in the USDE's request and defending local control of schools. The federal government responded by freezing some funds. This led Wisconsin, along with other states, to file a lawsuit to challenge the cuts.
The dispute was resolved when a federal appeals court declined to overturn a lower court's block on the pause, and the White House ultimately released the withheld funds in July 2025.
Advocacy for Labor Rights: In August 2024, Dr. Underly was the sole Regent to vote against a proposal leading to significant faculty layoffs across the UW System. Her dissent highlighted concerns about the lack of consultation with labor unions and the potential long-term impact on faculty and staff. She emphasized the importance of shared governance and the need for more inclusive decision-making processes.
Support for Direct Admit Wisconsin: Dr. Underly was a strong proponent of the Direct Admit Wisconsin program, which offers automatic admission to qualifying high school students at participating University of Wisconsin institutions. This initiative aims to increase access to higher education for Wisconsin residents by removing traditional application barriers. Under her support and the direction of the agency she oversees, the program expanded significantly with over 150 new high schools joining in its second year, providing admission offers to nearly 34,000 students.
Literacy Reform, Act 20 (2023): In 2023, under State Superintendent Jill Underly, the Wisconsin legislature passed Act 20, a bipartisan law ushering in statewide "science of reading" reforms. The law mandated a shift away from the promoted “three-cueing” method of early literacy instruction, which encourages students to guess words using semantic, syntactic, and visual cues—often at the expense of phonetic decoding. Act 20 required schools to adopt phonics-based reading practices and outlawed reliance on three-cueing for kindergarten through third-grade instruction. Dr. Underly, serving as State Superintendent, played a central role in negotiating the legislation and advocating for the new reading approach. She credited the initiative as one of her proudest accomplishments of her first term.
Act 20 also allocated $50 million for implementation—intended to support the creation of an Office of Literacy, hiring early reading coaches, developing curricula, and providing professional development for educators. The statute established an early literacy coaching program, screening assessments, and early intervention requirements, while increasing oversight of teacher preparation programs to ensure alignment with evidence-based instruction principles.
Realignment of Forward Exam proficiency levels to align with state standards: In 2024, Underly led a recalibration of the Forward Exam's cut scores and terminology—moving away from National Assessment of Educational Progress (NAEP)-based standards and involving about 100 Wisconsin educators in the process to ensure alignment with current academic standards. Underly directed the DPI to update the Forward Exam's proficiency categories—changing terminology and adjusting cut scores to align better with state academic standards. This marked a departure from the prior alignment with NAEP-based benchmarks.
Political Response and Transparency Issues: Governor Tony Evers vetoed legislation intended to reverse the changes, citing the importance of maintaining the superintendent's authority in setting standards. Independent groups, such as the Wisconsin Institute for Law and Liberty and the Badger Institute, criticized the shift, arguing that the revised standards reduced accountability and hindered meaningful comparisons over time. Critics also raised concerns about diminished year-over-year and interstate comparability due to the new reporting system.
The Wisconsin Department of Public Instruction (DPI) has released estimated trend data files to help compare student performance using the new standards and cut scores for the Forward Exam. This data, available through the WISEdash Public Portal, enables users to analyze how students would have performed in previous years if the new 2024 performance standards for English Language Arts (ELA) and mathematics had been in place.
Anthony J. Gradisnik Foreign Language Advocacy Award (2022) - awarded to the Wisconsin Department of Public Instruction, under the leadership of Dr. Jill Underly, by the Wisconsin Association for Language Teachers (WAFLT), in recognition of outstanding advocacy for language education.
State Council on Affirmative Action's Diversity Award (2024) - The Wisconsin Department of Public Instruction, under the leadership of Dr. Underly, received the 2024 Diversity Award from the State Council on Affirmative Action. The award honors state agencies for their commitment to recruiting, retaining, and promoting a diverse workforce, as evidenced by strategic, inclusive initiatives. Underly accepted the award on behalf of DPI in December 2024, recognizing the department's development and implementation of its 2024-26 Equity and Inclusion Strategic Plan—which outlined specific goals for diversifying and retaining underrepresented staff, improving hiring practices, and fostering an inclusive workplace culture.
Distinguished Alumni Award, Indiana University College of Arts & Sciences (2025)
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| '''General Election, April 6, 2021'''
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| Nonpartisan Primary, February 18, 2025
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| '''General Election, April 1, 2025'''
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