McHenry County GIS Data

Search for McHenry 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 McHenry County Illinois. As part of this job, McHenry County Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) data. These McHenry 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 McHenry County GIS data on their websites.

Burton Township Assessor Spring Grove IL 1420 Elm Street 60081 815-675-0323

Dunham Township Assessor Harvard IL 21706 West Airport Road 60033 815-943-4444

Greenwood Township Assessor Wonder Lake IL 5211 Miller Road 60097 815-648-4536

Mc Henry Township Assessor Johnsburg IL 3703 North Richmond Road 60051 815-385-0175

Mchenry County Assessor's Office Woodstock IL 220 North Seminary Avenue 60098 815-334-4274

Nunda Township Assessor Crystal Lake IL 3510 Bay Road 60012 815-459-6140


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 McHenry 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. McHenry County GIS data is often accessible through the Clerk Office website.

Algonquin Village Clerk Algonquin IL 2200 Harnish Drive 60102 847-658-4322

Mchenry County Clerk Woodstock IL 2200 North Seminary Avenue 60098 815-334-4234

Oakwood Hills Clerk Cary IL 3020 North Park Drive 60013 815-444-9453

Riley Township Clerk Marengo IL 21451 Norway Ct 60152 815-568-7335

Wonder Lake Clerk Wonder Lake IL 4200 Thompson Road 60097 815-728-0839


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 McHenry County Illinois. These GIS maps typically include property boundaries, real estate appraisal values, McHenry County property tax assessments, public property, and unclaimed parcels. The maps may also show place names, McHenry 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.

Crystal Lake City Hall Crystal Lake IL 100 West Woodstock Street 60014 815-459-2020

Harvard City Hall Harvard IL 201 West Front Street 60033 815-943-6468

Marengo City Hall Marengo IL 132 East Prairie Street 60152 815-568-7112

McHenry City Hall McHenry IL 333 South Green Street 60050 815-363-2100

Seneca Township Town Hall Woodstock IL 16506 Garden Valley Road 60098 815-923-2288

Woodstock City Hall Woodstock IL 121 West Calhoun Street 60098 815-338-4300


A Building Department creates and enforces building codes and zoning regulations in order to ensure the construction of safe buildings in McHenry County Illinois. As part of that job, Building Departments maintain GIS data that can include McHenry 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 McHenry 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.

Lakewood Village Building Department Lakewood IL 2500 Lake Avenue 60014 815-459-3025

Marengo City Building Department Marengo IL 835 West Grant Highway 60152 815-568-2669

McHenry Zoning McHenry IL 333 South Green Street 60050 815-363-2170

Oakwood Hills Building Department Cary IL 3020 North Park Drive 60013 815-444-9437

Prairie Grove Building Department Crystal Lake IL 3125 Barreville Road 60012 815-455-3846

Woodstock Zoning Woodstock IL 121 West Calhoun Street 60098 815-338-4305


A Recorder of Deeds keeps real estate documents to ensure the accuracy of property and land records in McHenry 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 McHenry County GIS data. These maps can include property lines, building information, unclaimed parcels, property value assessments, and property tax information. They may also show McHenry 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.

McHenry County Recorder of Deeds Woodstock IL 2200 North Seminary Avenue 60098 815-334-4110