GIS and Mapping Search in Williamson County,Illinois

Public GIS and Mapping in Williamson County,Illinois.ArcGIS Online, Google Maps, OpenStreetMap, USGS Topographic Maps, US Census Bureau Data, Natural Earth Data, NOAA Nautical Charts, and Mapbox can be accessed publicly.

Assessor

Assessor and Property Tax Records, Foreclosures and Tax Lien Sales, GIS and Mapping, Land Records and Deeds, Permits and Inspections, Sustainability and Environmental Health, Voter and Elections Information
Williamson County Supervisor of Assessments Office
Williamson County Courthouse
200 West Jefferson St., Marion, IL 62959 Ext.142
Phone: (618)997-1301

Floodplain Maps

GIS and Mapping, Permits and Inspections, Sustainability and Environmental Health
Search Williamson County floodplain maps by address.

Clerk, Recorder, Marriage Licenses, Birth, Death and Marriage Records and Voter Information

Birth Records, Crimes and Crime Data, Death Records, Foreclosures and Tax Lien Sales, GIS and Mapping, Land Records and Deeds, Marriage Records, UCC Filings, Voter and Elections Information
Williamson County Clerk and Recorder
Williamson County Courthouse
200 West Jefferson St., Marion, IL 62959 Ext. 120, 121, 122 or 123
Phone: (618)997-1301

Delinquent Taxes and Tax Sales

Foreclosures and Tax Lien Sales, Unclaimed Property
Williamson County Treasurer
Williamson County Courthouse
200 West Jefferson St., Marion, IL 62959 Ext. 160
Phone: (618)997-1301

Tax Deed Auctions

Foreclosures and Tax Lien Sales
View Williamson County tax deed auctions, including results of prior sales.

Illinois County Clerk and Recorder County Records

Birth Records, Death Records, Divorce Records, Land Records and Deeds, Marriage Records, Property Records, Vital Records
Search Illinois County Clerk and Recorder public records database by deed and mortgage indexes and images.

Williamson County Flood Maps

GIS and Mapping, Land Records and Deeds
View Williamson County floodplain maps, including effective flood insurance rate maps.

Williamson County Government GIS Maps

GIS and Mapping, Land Records and Deeds, Property Records
Search Williamson County Government GIS property maps database by property identification number, owner name and site address.

Williamson County Tax Records

Assessor and Property Tax Records, Land Records and Deeds, Property Records
View Williamson County tax deed auctions information page, including upcoming tax deed auctions.

Williamson County Treasurer Website

Assessor and Property Tax Records, Court Records, Employee Directory, Land Records and Deeds
View Williamson County Treasurer home page, including hours, phone number, and address.

Williamson County Website

Court Records, Employee Directory, Land Records and Deeds
View Williamson County home page, including county description, elected officials, county resources, and links to county services.

Williamson County Property Records Search

All Public Records Search

Browse by County