Mapping and Platting is responsible for maintaining names and address changes in the St. Clair County database.
If a mailing address is not correct on a notice or a Property Tax Bill, contact Mapping & Platting to have it corrected.
A parcel number of the property (PIN) or the property address is required.
It is the taxpayer's responsibility to notify Mapping & Platting of any change of address or error on the  tax bills and notices. 
Please note - St. Clair County does not send tax bills to Mortgage Companies.  Click here to read more about our escrow policy.
Telephone:  618-277-6600 ext 2524
    Mapping and Platting
    St. Clair County Building
    10 Public Square
    Belleville, IL 62220