Welcome to DuPage County, IL

Whether you live in DuPage County or are just visiting - we're here to provide you with dynamic maps and applications! DuPage GIS Open Data helps us to provide you with FREE data that you can downloaded right from our site!

DuPage County GIS has made available to you many of the various data sets and data layers that have been designed, created and maintained by the DuPage County GIS Division Team. We hope you find this site useful in obtaining needed geospatial data.

Our Goal and Purpose

Whether it's businesses, governments, nonprofits organizations, neighborhood groups, students or even individual residents, this open data site is designed to bring geospatial data together in one place, organize them, keep them updated, and make public geospatial data available to all stakeholders.

Our goal through this site is to make available high-quality information and analysis accessible in order to drive informed decision-making.

How to use this Site

Use the search bar at the top of the page to find data relating to topics of interest (i.e Schools). As you browse through the different data, the extent of each will be displayed on the map. Once you find what you are looking for, select the listed feature to be able to view the data and get options for download.

Downloading Data

DuPage County Open GIS Data is offered for download in several ways. First the data can be downloaded as shapefiles or KML for GIS applications, and CSV for tables and spreadsheets. Additionally, by using the API link, data from this site can be embedded in other applications with the feature service link or GeoJson.

2016 Election Results

Precinct Election Data from the 2016 General Election. All races have not been posted. Once the final GIS layer compilation for a race is completed it will be posted. more >


Land Records

Interested in more information about land records or cadastral data? Find out more information on Parcels, Lots, and Subdivisions here! more >


Governmental Districts

Interested in learning which taxing districts your home is in? Visit our gallery of district layers for more information. more >

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