Will County Assessor

Find Will County Illinois assessor, assessment, auditor's, and appraiser's office, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records.


Channahon Township Assessor 25461 South Fryer Street Channahon IL 60410 815-467-2831


Crete Township Assessors 1367 Wood Street Crete IL 60417 708-672-8291

Frankfort Township Assessor 11000 West Lincoln Highway Frankfort IL 60423 815-464-3180

Frankport Township Assessor 9440 West La Porte Road Mokena IL 60448 708-478-1680

Homer Township Assessor 14350 West 151st Street Homer Glen IL 60491 708-301-8166

Joliet Township Assessor 175 West Jefferson Street Joliet IL 60432 815-726-5446

Lockport Township Assessor 222 East 9th Street Lockport IL 60441 815-838-0780

Monee Township Assessor 46 Towncenter Drive University Park IL 60484 708-534-6023

New Lenox Township Assessor 1100 South Cedar Road New Lenox IL 60451 815-485-9419

Troy Township Assessor 25448 West Seil Road Shorewood IL 60404 815-744-1968

Washington Township Assessor 30200 Towncenter Road Beecher IL 60401 708-946-2026

Wheatland Assessor 12337 Illinois 59 Plainfield IL 60585 815-782-6366

Will County Assessor's Office 302 North Chicago Street Joliet IL 60432 815-740-4648

What if I disagree with an assessment?

Most jurisdictions have an appeal process for contesting an assessment. While the specific rules vary from one locality to the next, the process typically involves a hearing before an assessment appeal board. Taxpayers who have concerns about their assessment should visit their local Assessor's Office or its website to learn about the appeal process and what information is required in order to appeal a property tax assessment.

How does my assessment affect the taxes I owe?

The formula used to calculate property taxes varies by location. Your assessment is one part of your property tax calculation. Your property tax payment is calculated by multiplying your property's assessed value, or in some cases half of the assessed value, by the tax rate for your location.

What is the difference between assessed value and market value?

Market value is the likely selling price of a property based on current market conditions. In some jurisdictions, the Assessor calculates an assessed value by applying a factor, for example 70%, to the market value. The assessed value is then used to calculate the taxes for that property.