Washington County, IL: property tax inquiry
Search parcels or mobile homes by number, using low house number ranges, after acknowledging the disclaimer.
Washington County property tax inquiry
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What to know
- Choose Parcel Search or Mobile Home Search.
- Enter the parcel number or mobile home number (dashes optional).
- If using a house number range, enter the low house number.
- Confirm the disclaimer before the search runs.
Taken from the site itself on Oct 8, 2026.
What you can look up here
- Property recordsValues, classification, building details, and sales history for a parcel.
- Property ownerFind the owner of record for a parcel.
- Parcel numberLook up a parcel by its number, or find the number for an address.
- Property taxesTax statements, amounts due, values, and how to pay.
About this resource
- Provided by
- Washington County (official)
- Covers
- Washington County, IL
- Link status
- Opened normally at the last check
- Link checked
- Oct 18, 2026
- Web address
- https://washingtonil.devnetwedge.com/
Who to contact
- Washington County Supervisor of AssessmentsThe Washington County Supervisor of Assessments oversees property assessments in the county, handles homestead exemptions and helps with assessment appeals to the Board of Review.
- Phone
- (618) 327-4800
- Website
- Visit website
- Washington County TreasurerProperty tax billing and collection.Natalie Lynch, County Treasurer
- Phone
- (618) 327-4800
- Address
- 101 E. St. Louis Street Nashville, IL 62263
- Website
- Visit website
More for Washington County, IL
- Washington County zoning and land useZoning
- Illinois drainage districts and drainage commissionersWetlands
- FEMA Flood Map Service CenterFlood zones
- Washington County RecorderPlats
- Washington County building and land use permitsBuilding permits
- Illinois state landsPublic land
- Illinois food assistanceFood assistance (SNAP and EBT)
- Illinois unemployment benefitsUnemployment benefits
- Washington County GIS mapCounty GIS map
- Washington County TreasurerProperty taxes
- Washington County Treasurer tax saleTax-forfeited land
- Washington County roads and public worksRoads