Tax Agency rates for Tax Years 2006 through 2013. Data is updated yearly. For more information on Tax agencies visit the Cook County Clerk's website at: http://www.cookcountyclerk.com/tsd/Pages/default.aspx

Annual Tax Sale: A yearly auction of delinquent taxes where a tax buyer (purchaser) pays the delinquent taxes due on a parcel. This results in a lien on the property. The property owner must repay the tax buyer with interest for the amount of the sale – this is known as “redemption.” If redemption does not occur within a set time period, the tax buyer can obtain legal title to the property – this is referred to as a “tax deed.”

New check register data can be found at https://datacatalog.cookcountyil.gov/id/gywr-fjeh. This register contains checks from December 2006 through November 2013. This dataset will not be updated.

The feature class LOT contains lot polygons as shown on the tax map.

Paved road edge polygons show the location of pavement edges along a road

By ordinance, the investigations and considerations by the Board of Ethics of potential violations of the Ethics Ordinance are confidential. County Code, § 2-592. As a matter of policy, the Board also maintains as confidential the identity of the requestors of advisory opinions. Board of Ethics Rules & Regulations, § 4.10. The Board, however, is undertaking to make its final determinations available to the public with such deletions as may be necessary to prevent disclosure of any information the Board determines to be confidential.

As a public agency, the Office of the Chief Procurement Officer welcomes all vendors to participate in the open and competitive process. The buying plan contains hundreds of great opportunities for vendors to do business with Cook County. The buying plan includes information on numerous County projects and needs. You will find useful information on the department requesting proposals, project descriptions, value of contract, advertising date, and various Minority, Women and Veteran Business Enterprise subcontracting opportunities. OCPO encourages all potential vendors to use the information provided in the plan to assist them in future procurement efforts. Please contact Procurement staff or visit our website at https://www.cookcountyil.gov/procurement with any questions regarding procurement and contracting.

Cook County GIS Department map of municipal boundaries in Cook Cook County, Illinois in PDF format. Includes major streets, waterbodies, rail, Cook County Forest Preserve, and municipal boundaries.

Metropolitan Water Reclamation Taxing Districts in Cook County