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Assessor’s Office

The Monroe County Assessor’s Office is responsible for administering fair and timely assessment of all real property in Monroe County, IL. This includes:

  • Observing and abiding by the Illinois Department of Revenue and Illinois State Statues
  • Documenting finished evaluations for the County’s Board of Review to aid in:
    • Timely tax computation
    • Billing
  • Providing accurate taxpayer information and assessments through mail correspondence and publication
  • Answering questions involving property calculation records.

​Monroe County assesses real property on a quadrennial basis.

ASSESSMENT NOTICES CHANGE OF ADDRESS FORM COMPARABLES FARM RECORD CARDS FORMAL COMPLAINT FORMS OTHER BUILDINGS PROPERTY RECORD CARDS PUBLICATION LIST TRANSFER DECLARATIONS

Contact Assessor's Office

Carl D. Wuertz, Monroe County Assessor

100 S. Main St., Waterloo, IL 62298
Tel: 618-939-8681 ext. 211, Fax: 618-939-9141
Monday – Friday 8 a.m. – 4:30 p.m.
assessor@monroecountyil.gov