St clair county il court records search. Access court details, contact, location info, case details, and more. St. Clair County Clerk – 10 Public Sq. Access court case information for St. Clair court records online through government websites. Clair County is the oldest county in the U. Discover the court system in Saint Clair, including different court types, criminal court records, and learn how to easily access to county records. Please include the parcel number (s) or address. The St. The offices provide a Parcel and Mobile Home Search tool for interested persons to find comprehensive property data by property parcel number, owner name, address, and mobile home number.