Treasurer's Business Hours:

 Monday through Friday, 8:30 a.m. - 5:00 p.m.

 (618) 277-6600

Treasurer's Personnel Directory

 

Email the Treasurer:

treasurer@co.st-clair.il.us 

 

The St. Clair County Treasurer's Office mailing address:

St. Clair County Treasurer

10 Public Square

Belleville IL 62220

 

Current Real Estate Tax Payments Mailing Address:

St. Clair County Collector

Post Office Box 23980

Belleville IL 62223