LaSalle County Property Search

Search free LaSalle County IL property, land, and tax records through local government assessors, auditors, clerks, property appraisers, deeds recorders, treasurers, tax collectors, city halls, and town halls.


The LaSalle County Assessor is responsible for determining the value of property in order to determine LaSalle County property taxes. The LaSalle County Assessment Office collect data from on-site inspections, value assessments for construction or improvements, comparable sales, and calculations of depreciation. The LaSalle County Tax Assessor maintains current data on every parcel in the LaSalle County, which includes ownership information, maps of property lines, inventories of parcels and structures, and the value of all the property in the LaSalle County, IL. The LaSalle County Assessor’s Office can answer questions regarding LaSalle County property tax appeals and assessments, LaSalle County property tax rates and payment due dates.

La Salle Township Assessor LaSalle IL 931 1st Street 61301 815-223-0807

Lasalle County Assessor's Office Ottawa IL 707 East Etna Road 61350 815-434-8233


LaSalle County Auditors are responsible for maintaining accurate financial records on properties, including the appraisal and assessment of a property's value, which is used to determine LaSalle County property taxes. The LaSalle County Auditor’s Office collects data from on-site inspections, information submitted by owners, prior sales, and statistical analyses. The Auditor maintains current data on LaSalle County property value, owner information, inventories of parcels and structures, and parcel maps. The Office also provides property search databases for LaSalle County, IL.

Ottawa Auditor Ottawa IL 707 East Etna Road 61350 815-434-8222


The LaSalle County Clerk files important documents and preserves municipal records in order to maintain an archive of LaSalle County property records that can be accessed by the public. The Clerk's Office is a valuable source of information on property in LaSalle County, Illinois. The LaSalle County Clerk's Office contains documentation on real estate excise taxes, registered land, and property transactions, as well as land documents including LaSalle County deeds, mortgages, and liens on properties.

Earlville City Clerk Earlville IL 210 West Railroad Street 60518 815-246-9588

La Salle City Clerk LaSalle IL 745 2nd Street 61301 815-223-0077

La Salle Clerk Ottawa IL 119 West Madison Street 61350 815-433-0774

Lasalle County Clerk Ottawa IL PO Box 430 61350 815-434-8202

Leland Village Clerk Leland IL 285 West Genessee Street 60531 815-495-9530

Mendota City Clerk Mendota IL 800 Washington Street 61342 815-539-7459

Oglesby City Clerk Oglesby IL 128 West Walnut Street 61348 815-883-5122

Peru City Clerk Peru IL 1727 4th Street 61354 815-223-0061


The LaSalle County Recorders of Deeds maintain public records, particularly documents related to property and land records, and make them available for public access in LaSalle County, IL. The Office of Recorder of Deeds in LaSalle County is a valuable source of information on property records The Recorder of Deeds maintains documents on land transactions within its jurisdictions, including LaSalle County deeds and titles, mortgages, property ownership records, surveys, and easements, as well as tax liens.

La Salle County Recorder of Deeds Ottawa IL 707 East Etna Road 61350 815-434-8226


LaSalle County Town Halls and City Hall are the chief administrative offices that runs the town or city. The Town Hall or City Hall often maintains records related to the locality, including LaSalle County property taxes, property value assessments, and land transactions, as well as property sales and transfers in LaSalle County, Illinois.

Brookfield Town Hall Seneca IL 2099 North 27th Road 61360 815-357-1144

Dayton Township Town Hall Ottawa IL 3312 East 18th Road 61350 815-433-0855

Fall River Township Town Hall Ottawa IL # 1816, 1805 N 25th Rd 61350 815-434-5325

Kangley Town Hall Streator IL 4501 Main Street 61364 815-672-5460

La Salle City Hall LaSalle IL 745 2nd Street 61301 815-223-3755

Oglesby City Hall Oglesby IL 110 East Walnut Street 61348 815-883-3389

Ottawa City Hall Ottawa IL 301 West Madison Street 61350 815-433-0161

Seneca City Hall Seneca IL 340 North Cash Street 61360 815-357-8771

Tonica Village Town Hall Tonica IL 605 East Wauponis Street 61370 815-442-3101


The LaSalle County Treasurer and Tax Collector’s Office is responsible for the collection of LaSalle County property tax revenue. The Treasurer and Tax Collector maintains current LaSalle County property tax information including LaSalle County property ownership information, GIS Maps, tax maps, historical property tax rates, lists of sold parcels, and is also charged with the sale of properties due to a default on taxes in LaSalle County, Illinois.

Lasalle County Illinois Tax Collector Ottawa IL 707 East Etna Road 61350 815-434-8219

Marseilles City Treasurer Marseilles IL 209 Lincoln Street 61341 815-795-2133