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.
Washington County, Illinois, has about 14,000 residents (2024 Census Bureau estimate). The title to a parcel in Washington 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, evictions and court cases, records requests, directory links and common questions.
Related guides: Washington County public records, Washington County arrest records, Washington County warrants, Washington County inmate search, Washington County criminal records, Illinois arrest records and Illinois inmate search.
Deeds, Mortgages and Liens in Washington County
Who owns a parcel in Washington 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 washingtonco.illinois.gov/county-clerk-and-recorder (page title: County Clerk & Recorder | Washington County, Illinois), phone (618) 327-4800, 101 E. St. Louis St. Nashville, IL 62263, Mon-Fri 8:00am - 4:00pm, which answered when SearchSystems opened it on September 30, 2026.
Assessed Values and the Tax Roll in Washington County
What a parcel in Washington 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 washingtonco.illinois.gov/supervisor-of-assessments (page title: Supervisor of Assessments | Washington County, Illinois), phone (618) 327-4800, which answered when SearchSystems opened it on September 30, 2026.
Evictions and Court Cases About Land in Washington County
An eviction, a foreclosure, a lien dispute or a quiet title suit is a court case in the Circuit Court of Washington County, and the file is public unless sealed.
The court records page SearchSystems verified for the county is at washingtonco.illinois.gov/circuit-clerk, phone (618) 327-4800.
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.
More Official Property and Land Records Pages for Washington County
The SearchSystems directory, online since 1997, lists the official pages for Washington County and Illinois. These recorded document pages from its Washington County listing were opened again on October 2, 2026 and each one still answers:
- Recorder (ilsos.gov)
Frequently Asked Questions
Who records deeds in Washington County?
The County Recorder, at washingtonco.illinois.gov, phone (618) 327-4800. Deeds, mortgages and liens on land in Washington County are filed there, and the Supervisor of Assessments (washingtonco.illinois.gov) has the assessment records.
Who sets the assessed value of a property in Washington County?
The Supervisor of Assessments, whose page SearchSystems verified is at washingtonco.illinois.gov.
Where are evictions from Washington County filed?
In the Circuit Court of Washington 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 Washington 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.