County Treasurer


Brinson Venable


407 N. Monroe Street, Suite 104
Marion, IL 62959
Phone: 618-998-2142
Fax: 618-997-2541

Office Hours: Monday-Friday, 8:00 a.m. - 4:00 p.m.
On Real Estate Collection Due Dates: 8:00 a.m. - 6:00 p.m.

Contact Us

Property Tax Payment Dates

1st Installment: July 13, 2018

2nd Installment: September 13, 2018

 Make checks payable to: "Williamson County Treasurer"


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A 1-1/2% interest amount will be charged on the delinquent amount per month or ANY portion of a month.

To avoid the publication of your name as being a delinquent taxpayer, pay by October 12, 2018.

The property tax sale will be Thursday, November 8, 2018.

No property tax payments will be accepted after Wednesday, November 7, 2018.