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Jason Grotto

Reporter

Photo of Jason Grotto

Born and raised in Chicago, ProPublica Illinois reporter Jason Grotto specializes in quantitative analysis, using databases, statistics and mapping to ferret out corruption, negligence and bad public policy. Previously, he worked as an investigative reporter for the Chicago Tribune and the Miami Herald. His most recent project, which exposed widespread inaccuracies and disparities in Cook County’s property tax assessment system, was a Pulitzer Prize finalist for local reporting in 2018. He has also reported on the pension crisis in Chicago and Illinois and led a Gerald Loeb Award-winning investigation on Chicago Public Schools’ disastrous use of auction-rate securities, uncovered fraud in federal poverty programs, problems in Iraq war contracting and flaws in the Chicago Housing Authority's Plan for Transformation.

He was a 2015 Nieman Fellow at Harvard University, where he studied municipal finance. Other honors include a Chicago/Midwest Emmy Award, an Investigative Reporters and Editors Award and the Society of Environmental Journalists Award. He earned a master's degree in journalism from the University of Missouri in 2000 and a bachelor's in U.S. history from the University of Oregon in 1995.

How the Cook County Assessor Failed Taxpayers

Joseph Berrios' error-ridden commercial and industrial assessments punish property owners, benefit lawyers.

How We Analyzed Commercial and Industrial Property Assessments in Chicago and Cook County

An in-depth analysis of hundreds of thousands of property tax records under Cook County Assessor Joseph Berrios.

Cook County Assessor: Office Cuts Make It Tough to Get Tax Bills Out On Time

Embattled assessor Joseph Berrios said he has already saved the county millions.

Cook County Assessor Faces Questions About Property Tax Inequity

After reporting showed that Cook County’s property tax assessments punish the poor and reward the rich, Assessor Joseph Berrios is called before a public board to explain.

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