Ward precincts, which function as local election districts to determine the polling places for voters, based on their addresses. Precincts are based on U.S. Census Bureau blocks. These precincts were first used for the 2012 elections and first used for Chicago municipal elections in 2015.

Major streets in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

List of alderman, office address, phone number, and website for all 50 Chicago wards.

Police district boundaries in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

Neighborhood boundaries in Chicago, as developed by the Office of Tourism. These boundaries are approximate and names are not official. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.

The following dataset includes "Active Benchmarks," which are provided to facilitate the identification of City-managed standard benchmarks. Standard benchmarks are for public and private use in establishing a point in space. Note: The benchmarks are referenced to the Chicago City Datum = 0.00, (CCD = 579.88 feet above mean tide New York). The City of Chicago Department of Water Management’s (DWM) Topographic Benchmark is the source of the benchmark information contained in this online database. The information contained in the index card system was compiled by scanning the original cards, then transcribing some of this information to prepare a table and map. Over time, the DWM will contract services to field verify the data and update the index card system and this online database.This dataset was last updated September 2011. Coordinates are estimated. To view map, go to http://cityofchicago.org/content/dam/city/depts/water/supp_info/Benchmarks/BMMap.pdf. Please read the Terms of Use: http://www.cityofchicago.org/city/en/narr/foia/data_disclaimer.html.

Current police district boundaries in Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.

Bike racks in Chicago. To view or use the attachment files, compression software and special GIS software, such as ESRI ArcGIS, is required.

City boundary of Chicago in shapefile format. This dataset has been superseded by https://data.cityofchicago.org/d/ewy2-6yfk, which is in a more flexible format that still allows shapefile downloads. Please use that dataset instead.

This dataset is a list of Chicago Landmark Districts designated by City Council upon recommendation of the Commission on Chicago Landmarks. It contains the name of each Chicago Landmark District along with the date of its designation. Additional information about each Chicago Landmark District, including district maps, is available on the Chicago Landmarks home page at http://j.mp/lRJVnh. Districts which have been proposed for landmark designation by the Commission on Chicago Landmarks and remain under consideration are not included. This information is for illustrative purposes only; the legal boundaries are as identified by the respective landmark designation ordinances. A data set containing Individual Chicago Landmarks is available separately. Go to http://j.mp/m7t5nB to access the related GIS layer files. You will need compression software and special software, such as ESRI ArcGIS, to use the GIS files.

Connect Chicago is a loose network of more than 250 places in the city where internet and computer access, digital skills training, and online learning resources are available—for free.

This data set represents all the available details for every location. The content is updated regularly by site administrators and location managers.

2010 Census block boundaries clipped to Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.

List of schools by name, address, type and grades. Note some facilities house multiple schools.

Hospitals in Chicago. To view or use these files, compression software, like WinZip, and special GIS software, such as ESRI ArcGIS, is required. The .dbf file may also be opened in Excel, Access or other database programs.

Lines representing approximately where the CTA rail lines are. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS is required.
Projected Coordinate System: NAD_1983_StatePlane_Illinois_East_FIPS_1201_Feet

Senior Center locations, hours of operation and contact information

Parks managed by the Chicago Park District. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. To download, right-click the "Download" link above and choose "Save link as."

Parks managed by the Chicago Park District. Dataset includes park facilities and features information. For Shapefiles, go to https://data.cityofchicago.org/Parks-Recreation/Parks-Shapefiles/5msb-wbxn. For KML files, go to https://data.cityofchicago.org/Parks-Recreation/Parks-KML/hmfy-xsta.

Empowerment Zone boundaries in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. The Empowerment Zones/Enterprise Communities program (EZ/EC) is a Federal, State, local government partnership for stimulating comprehensive renewal--particularly economic growth and social development--in distressed urban neighborhoods and rural areas across the nation. For more information, go to http://www.hud.gov/offices/cpd/economicdevelopment/programs/rc/.

Boundaries for Forest Preserve located in Chicago only, managed by the Forest Preserve District of Cook County, http://www.fpdcc.com/. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

Connect Chicago is a loose network of more than 250 places in the city where internet and computer access, digital skills training, and online learning resources are available—for free.

This data set represents all the available details for every location. The content is updated regularly by site administrators and location managers.

This dataset is a list of individual Chicago Landmarks designated by City Council upon recommendation of the Commission on Chicago Landmarks. It contains the name of each landmark property along with the date of its construction (if known), the name of its architect/designer (if known), and the date of Chicago Landmark designation. Additional information about each individual Chicago Landmark can be found on the Chicago Landmarks home page at http://j.mp/lRJVnh. Properties which have been proposed for landmark designation by the Commission on Chicago Landmarks and remain under consideration are not included. This information is for illustrative purposes only; the legal descriptions are as identified by the respective landmark designation ordinances. A dataset containing Chicago Landmark Districts is available separately. Data updated quarterly.

Waterways in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

Street center lines in Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.

Point data representing location of CTA Rail Station. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS is required.
Projected Coordinate System: NAD_1983_StatePlane_Illinois_East_FIPS_1201_Feet