Lasalle County Assessor's Office in Ottawa, Illinois

About Lasalle County Assessor's Office

The Lasalle County Assessor's Office, located in Ottawa, Illinois, determines the value of all taxable property in LaSalle County, IL. Taxable property includes land and commercial properties, often referred to as real property or real estate, and fixed assets owned by businesses, often referred to as personal property. Property assessments performed by the Assessor are used to determine the LaSalle County property taxes owed by individual taxpayers.

• La Salle County, IL property tax assessments
• Property tax appeals and reassessments
• Paying property tax bills and due dates
• Property tax rates and tax roll
• La Salle County GIS maps, property maps, and plat maps
• Property records and deeds in La Salle County