SearchSystems Editorial

Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 23, 2026 and October 4, 2026.

About this guide

St. Clair County, Illinois, has about 251,000 residents (2024 Census Bureau estimate). The title to a parcel in St. Clair County is in the deed records of the County Recorder and its taxable value is set by the Supervisor of Assessments; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.

This guide covers deeds, assessed values, directory links, city permits, evictions and court cases, records requests and common questions.

Related guides: St. Clair County public records, St. Clair County arrest records, St. Clair County warrants, St. Clair County inmate search, St. Clair County police reports, Illinois arrest records and Illinois inmate search.

Deeds, Mortgages and Liens in St. Clair County

Who owns a parcel in St. Clair County and what it sold for are in the deed records of the County Recorder, with every lien or mortgage against the land.

SearchSystems opened and checked the County Recorder's page at co.st-clair.il.us/departments/recorder-of-deeds (page title: Recorder of Deeds | Departments | St. Clair), phone (618) 825-2481, 10 Public Sq, 5th Floor Belleville, IL 62222, which answered when SearchSystems opened it on September 23, 2026.

Assessed Values and the Tax Roll in St. Clair County

What a parcel in St. Clair County is taxed on is the business of the Supervisor of Assessments, which also keeps the parcel maps. Illinois assesses property at a third of market value; Cook County reassesses one third of the county each year and the rest of the state runs on four-year cycles.

SearchSystems opened and checked the Supervisor of Assessments' page at co.st-clair.il.us/departments/assessor (page title: Assessor | Departments | St. Clair), phone 618-825-2704, which answered when SearchSystems opened it on September 23, 2026.

More Official Property and Land Records Pages for St. Clair County

The SearchSystems directory, online since 1997, lists the official pages for St. Clair County and Illinois. These property pages from its St. Clair County listing were opened again on October 2, 2026 and each one still answers:

Permits and City Records in the Cities of St. Clair County

Building permits, zoning and code cases inside a city are the city's own records. The cities in St. Clair County with a SearchSystems guide to their offices, with the city page SearchSystems verified:

Evictions and Court Cases About Land in St. Clair County

An eviction, a foreclosure, a lien dispute or a quiet title suit is a court case in the Circuit Court of St. Clair County, and the file is public unless sealed.

Asking a County Office for a Record

Under the Illinois Freedom of Information Act a county office must answer a request within 5 business days, with one 5-day extension, and it may charge copying only after the first 50 pages. The county records request page SearchSystems verified is at stclaircountyil.justfoia.com/publicportal/home/newrequest (page title: St. Clair County, IL Public Portal | JustFOIA).

Frequently Asked Questions

Who records deeds in St. Clair County?

The County Recorder, at co.st-clair.il.us, phone (618) 825-2481. Deeds, mortgages and liens on land in St. Clair County are filed there, and the Supervisor of Assessments (co.st-clair.il.us/departments/assessor) has the assessment records.

Who sets the assessed value of a property in St. Clair County?

The Supervisor of Assessments, whose page SearchSystems verified is at co.st-clair.il.us/departments/assessor.

Where are evictions from St. Clair County filed?

In the Circuit Court of St. Clair County. The file is public unless the court seals it.

How is property assessed in Illinois?

Illinois assesses property at a third of market value; Cook County reassesses one third of the county each year and the rest of the state runs on four-year cycles.

Is this the official St. Clair County website?

No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.