DeKalb County GIS Data (Illinois)

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

Burlington Township Assessor Sycamore IL 434 South Main Street 60178 847-683-2555

Cortland Township Assessor Cortland IL 14 South Prairie Street 60112 815-756-6423

Dekalb County Assessor's Office Sycamore IL 110 East Sycamore Street 60178 815-895-7120

Sandwich Township Assessor Sandwich IL 201 West Center Street 60548 815-786-2828

Sycamore Township Assessor Sycamore IL 545 Brickville Road 60178 815-899-5313


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

Cortland Town Clerk Cortland IL 59 South Somonauk Road 60112 815-756-9041

Dekalb County Clerk Sycamore IL 110 East Sycamore Street 60178 815-895-7146

Kirkland City Clerk Kirkland IL 511 Main Street 60146 815-522-6179

Sandwich City Clerk Sandwich IL 144 East Railroad Street 60548 815-786-9321


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

Cortland Town Hall Cortland IL 59 South Somonauk Road 60112 815-756-3030

Genoa City Hall Genoa IL 333 East 1st Street 60135 815-784-2327

Sandwich City Hall Sandwich IL 144 East Railroad Street 60548 815-786-8802

Waterman City Hall Waterman IL 215 West Adams Street 60556 815-264-3652


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

Cortland Zoning Cortland IL 59 South Somonauk Road 60112 815-756-4124

Sycamore Zoning Sycamore IL 541 Dekalb Avenue 60178 815-895-4434


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

Dekalb County Recorder of Deeds Sycamore IL 110 East Sycamore Street 60178 815-895-7149