As Cook County Treasurer Maria Pappas prepared to send out more than 1.7 million tax bills, her team was also completing an ambitious review of what the owner of every parcel of land will have to pay. Among the key findings:

• Total property tax bills for commercial owners increased 6.2 percent from the previous year, compared to a 1.3 percent hike for residential owners.
• Majority Black and Latino communities are being impacted the hardest. Their communities make up 6 of the ten areas with the largest tax increases for homeowners.

"This is a system that’s not working," Pappas said.

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