St. Clair County GIS Portal (Illinois)

St. Clair County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate St. Clair County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These St. Clair County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in St. Clair County, Illinois. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the St. Clair County Assessor Office website.

St Clair County Assessor's Office Belleville IL 10 Public Square 62220 618-825-2500


St. Clair County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as St. Clair County GIS maps. The GIS maps at a St. Clair County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in St. Clair County, Illinois. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the St. Clair County Town and City Hall website.

Belleville City Hall Belleville IL 101 South Illinois Street, Ste 2 62220 618-233-6810

Brooklyn City Hall Brooklyn IL 312 South 5th Street 62059 618-271-8424

Columbia City Hall Columbia IL 208 S Rapp Ave 62236 618-281-7144

Dupo City Hall Dupo IL 100 North 2nd Street 62239 618-286-3280

East Saint Louis City Hall East Saint Louis IL 5800 Bond Avenue 62207 618-332-8822

Lebanon City Hall Lebanon IL 312 West Saint Louis Street 62254 618-537-4976

O'Fallon City Hall O'Fallon IL 255 South Lincoln Avenue 62269 618-624-4500

Stookey Town Hall Belleville IL 313 Eiler Rd 62223 618-538-7700

St. Clair County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including St. Clair County property maps that show boundaries, public property, property divisions, and in some cases, population information in St. Clair County, Illinois. They may also include property value assessments and property tax rates. St. Clair County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Cahokia Village Clerk Cahokia IL 103 Main Street 62206 618-332-6851

East Carondelet Clerk East Carondelet IL 950 State Street 62240 618-286-4727

East Saint Luois City Clerk East Saint Louis IL 301 Riverpark Drive 62201 618-482-6811

Freeburg Clerk Freeburg IL 14 Southgate Center 62243 618-539-5545

Lebanon City Clerk Lebanon IL 312 West Saint Louis Street 62254 618-537-4976

St Clair County Clerk Belleville IL 10 Public Square 62220 217-774-4421


St. Clair County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including St. Clair County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in St. Clair County, Illinois. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the St. Clair County Recorder of Deeds website.

St Clair County Court House Belleville IL 10 Public Square 62220 618-277-6600