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Cook County Assessor — Illinois

State Agency

Contact Information

  • 📍 118 N Clark Street Room 320, Chicago 60602
  • 📞 (312) 443-7550
  • 🕒 Mon-Fri 8:30am-5pm CT
  • ⏱ Appeal Deadline: 30 days

Take Action

File Appeal Online → Visit Official Website → Browse Dispute Categories →