Cook County, IL · 2025

47 homes in this zip may be paying too much in property taxes — a collective ~$2.3M above the neighborhood median.

The typical flagged property is overassessed by ~$40,710. Overassessments range from ~$23,257 to ~$174,103. 2 properties have recent purchase price evidence — the strongest argument at a Board of Review hearing. Ownwell can file your appeal and handle everything — no upfront cost, you only pay if you save.

Appeal windows vary by township, March–November 2026. Find your township's open window at cookcountyassessor.com.