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Assessor's Office

Welcome to the Township of Lemont Assessor's office!

We are first and foremost your local property tax advocate.


Our office provides many services to the residents of Lemont Township:

** Taxpayers looking at this year’s first installment bills should note that they do not reflect homeowner, senior citizen, or other exemptions, nor do reflect the impact of reassessments or successful assessment appeals from tax year 2023. Exemptions, reassessments, and successful appeals will instead impact second installment bills, as will the effect of changes in the tax levies of local governments. Second installment bills will likely be due in the summer or fall of 2024. Details about Paying Taxes. Property owners who do not have mortgage companies paying their taxes can make tax payments in person, by mail, or online at the Cook County Treasurer’s web site, Those wishing to pay in person can do so at the Cook County Treasurer’s downtown office at 118 N. Clark Street and at any Chase Bank in the Chicago area. The Chase branch which is most convenient for Lemont residents is located at 1132 State Street, Lemont. If money for property taxes is paid into an escrow account with a taxpayer’s mortgage company, the financial institution should receive the tax bill electronically, even if the taxpayer also receives a copy of the bill. Lemont Township advises taxpayers with property tax escrows held by their mortgage companies not to pay property taxes on their own, as this may result in a double payment of taxes. Taxpayers with mortgage escrows should check the Cook County Treasurer's website to verify that their mortgage companies have paid the taxes. Release date: January 31, 2024

Cook County Property Tax System

Assessor's Office Helpful Links



Patrick Hynes, Interim Assessor:

Suellen Sredin, Administrative Assistant:

(630) 257-2522 X116


Hours of Operation:

Monday through Friday   9:00 am - 4:00 pm

Saturday                          Closed

Sunday                            Closed