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 on September 23, 2026.

About this guide

LaSalle County, Illinois, has about 108,000 residents (2024 Census Bureau estimate). The title to a parcel in LaSalle 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, city permits, evictions and court cases, records requests and common questions.

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

Deeds, Mortgages and Liens in LaSalle County

Deeds, mortgages, liens and easements that affect title to land in LaSalle County are recorded by the County Recorder, which indexes them by name and sells copies.

SearchSystems opened and checked the County Recorder's page at lasallecountyil.gov/456/Recorder-of-Deeds (page title: Recorder of Deeds | LaSalle County, IL), phone 815-434-8226, 707 E Etna Road Ottawa, IL 61350, Monday through Friday 8 am to 4:30 pm, which answered when SearchSystems opened it on September 23, 2026.

Assessed Values and the Tax Roll in LaSalle County

The Supervisor of Assessments sets the value each parcel in LaSalle County is taxed on and 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 lasallecountyil.gov/194/Assessments (page title: Assessments | LaSalle County, IL), phone 815-434-8233, which answered when SearchSystems opened it on September 23, 2026.

Permits and City Records in the Cities of LaSalle County

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

Evictions and Court Cases About Land in LaSalle County

Court cases about land from LaSalle County, evictions among them, are filed in the Circuit Court of LaSalle County.

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 lasallecounty.com/i-want-to/request/foiapublic-records (page title: FOIA/Public Records).

Frequently Asked Questions

Who records deeds in LaSalle County?

The County Recorder, at lasallecountyil.gov/456/Recorder-of-Deeds, phone 815-434-8226. Deeds, mortgages and liens on land in LaSalle County are filed there, and the Supervisor of Assessments (lasallecountyil.gov/194/Assessments) has the assessment records.

Who sets the assessed value of a property in LaSalle County?

The Supervisor of Assessments, whose page SearchSystems verified is at lasallecountyil.gov/194/Assessments.

Where are evictions from LaSalle County filed?

In the Circuit Court of LaSalle 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 LaSalle 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.