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DuPage County Geospatial data is available for “FREE” from our online GIS Open Data website. This open data portal can also be accessed via the DuPage County Maps and Applications Portal . Users will be able to download various datasets in various formats for their own use.
Uses of GIS Data. Provide more accurate maps and data for all county departmental use; Provide more accurate web maps and web mapping applications for public use; Tax Assessment; Storm Water / Topological; Zoning; Land Use; Elections; Integration with Real Estate files to facilitate tax assessment; Provides an accurate base for new survey and ...
Local Geoid Model - The County has defaulted to the latest Good Model that NGS uses with their OPUS solutions. Currently it is called GEOID 12A. Note: Subject to change by NGS. Additional Ordinance questions: Please contact the DuPage County Stormwater Management Division or call 630-407-6700.
Find an Early Voting Location near you (GIS Web Map) - April 1, 2025, Consolidated Election, available soon. The Early Voting program allows any eligible DuPage County voter to vote before Election Day.
Parcel Number (PIN) Search; Address Search; Map Search; BOR Hearings
Questionable corner markers were replaced with more durable and permanent monuments, mostly Harrison Ferro-Magnetic Survey Monuments that still exist today. And most importantly, for the first time the DuPage County PLSS was spatially referenced to the NGS (National Geodetic Survey) control network.
DuPage County GIS Data/Map Products *** For free GIS Data go to our Open Data portal. *** Map Ordering Instructions. All maps are sold in the department listed. Please refer to these departments for fee schedules. County Clerk's Office - 630-407-5500; Division of Transportation; Election Commission - 630-407-5600
How to use the DuPage County Parcel Viewer Interactive Web Mapping Application. Parcel Viewer URL: URL: http://gis.dupageco.org/parcelviewer/ • Initial View (And frequently asked questions) • Parcel Search (Find Parcels by PIN or Address Search) • Parcel Search (Find Parcel By Map Selection or Shape)
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Welcome - DuPage County Property Records Search. Important: This site provides access to the DuPage County property records database. You can access public records by searching by street address, Parcel ID or various other methods.