Williamson County GIS Data (Illinois)

Search for Williamson County, IL GIS data. A GIS data search can provide information on GIS maps, property lines, county lines, city lines, public property, elevations, flood zones, school boundaries, earthquake zones, property appraisal values, erosion, water pollutants, topography, soil composition, sewers, public utilities, building hazards, population information, demographic information, place names, public property, parks, campgrounds, trails, trail maps, historic maps, historic GIS maps, town maps, county maps, city maps, and neighborhood boundaries.


An Assessor Office is responsible for appraising the taxable property in an area in order to calculate property taxes in Williamson County, Illinois. As part of this job, Williamson County Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) data. These Williamson County GIS maps typically include property divisions, plots, buildings, property appraisal values, and property taxes. They may also include public property, parks, roads, place names, bodies of water, and other local geographical information, as well as flood zones, county zone lines, and school boundaries. These maps can be useful for a number of reasons, including buying and selling property. Assessors may provide online access to their Williamson County GIS data on their websites.

Williamson County Assessor's Office Marion IL 200 West Jefferson Street 62959 618-997-1301


A Town or City Hall provides municipal services for their town or city, including keeping vital records and maintaining documents on their jurisdiction such as maps with GIS data in Williamson County, Illinois. These GIS maps typically include property boundaries, real estate appraisal values, Williamson County property tax assessments, public property, and unclaimed parcels. The maps may also show place names, Williamson County zoning boundaries, bodies of water, and flood zones, as well as population and demographic information. Some Town and City Halls also maintain historical maps of their area. These maps are often available on the Town or City Hall website.

Cambria City Hall Carterville IL 302 South Richart Street 62918 618-985-6082

Creal Springs City Hall Creal Springs IL 507 North Walnut Grove Road 62922 618-996-2311

Hurst City Hall Hurst IL 111 Bush Avenue 62949 618-987-2513

Johnston City Hall Johnston IL 100 West Broadway Boulevard 62951 618-983-6651

Pittsburg City Hall Pittsburg IL 302 W Avery Ave 62974 618-993-8260


A Clerk Office maintains public records for a county or local government, including GIS data in the form of maps. These GIS maps provide detailed information such as property boundaries, roads, public property, parks, and in some cases, population and demographic information. GIS data can also show Williamson County property value assessments, property taxes, flood zones, zoning boundaries, and earthquake zones, as well as place names, bodies of water, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations. Williamson County GIS data is often accessible through the Clerk Office website.

Carterville City Clerk Carterville IL 101 South Division Street 62918 618-985-2252

Herrin City Clerk Herrin IL 300 North Park Avenue 62948 618-942-3175

Williamson County Clerk Marion IL 407 North Monroe Street 62959 618-997-1301


A Building Department creates and enforces building codes and zoning regulations in order to ensure the construction of safe buildings in Williamson County, Illinois. As part of that job, Building Departments maintain GIS data that can include Williamson County GIS maps on the topography, elevation, soil composition, and flood zones for the local area. This information can be important for adhering to building codes and meeting zoning rules. These GIS maps may also show Williamson County parcels, lots, subdivisions, and tracts of land, as well as sewers, public utilities, and other building hazards. GIS data may be available on the Building Department website.

Herrin Building Department Herrin IL 300 North Park Avenue 62948 618-942-6004

Jackson County Planning Department Carbondale IL 608 E College St 62901 618-549-3306


A Recorder of Deeds keeps real estate documents to ensure the accuracy of property and land records in Williamson County, Illinois. In addition to filing deeds that provide information on property sales and transfers, Recorders of Deeds also have detailed county and local maps, including Williamson County GIS data. These maps can include property lines, building information, unclaimed parcels, property value assessments, and property tax information. They may also show Williamson County place names, flood zones, zoning boundaries, neighborhood lines, bodies of water, and other geographic information. The Recorder of Deeds may provide access to GIS data on its website.

Williamson County Recorder of Deeds Marion IL 407 North Monroe Street 62959 618-997-1301