The city boundary of Chicago. This dataset is in a format for spatial datasets that is inherently tabular but allows for a map as a derived view. Please click the indicated link below for such a map. To export the data in either tabular or geographic format, please use the Export button on this dataset.

This file corrects several problems in the original TIGER/line files, notably the inclusion of parts of Lake Michigan within the city limits, and the numerous irregularities that are a function of the way the TIGER/line files were created. This file will consequently not line up with TIGER/line streets or tracts; it will line up with the 1992 ward boundary file. Its author is Christopher Siciliano.

KML file of boundary for the city of Chicago. To view or use these files, special GIS software, such as Google Earth, is required.

This map is part of a collection of 10 maps showing the location of Presbyterian Churches in relation to ethnic groups in the city of Chicago. The manuscript title is "The effects of subsity of Presbyterian Churches", by Henry Hughes Presler, and can be found at Mansueto Library, University of Chicago under the call number BX 10999. These maps have been outlined and vectorized as the originals, and points placed for location of churches as they were in the original. Call number for the maps: G4104.C6E1 1948.H6. Map Collection, Regenstein Library, University of Chicago. Drawn from Map 10 - Churches in Hinterland of Chicago Presbytery, 1940.

Ward boundaries in Chicago from May 2023 onward, corresponding to the dates when a new City Council is sworn in, based on the immediately preceding elections. Neither this description nor the dataset should be relied upon in situations where legal precision is required. ​​​​​This dataset is in a forma​​t for spatial datasets that is inherently tabular but allows for a map as a derived view. Please click the indicated link below for such a map. To export the data in either tabular or geographic format, please use the Export button on this dataset.

Map of the Chicago boundary.

Map of Chicago community areas.

Curb lines for the city of Chicago. Curb lines mark the points where curbs meet the edge of the street pavement. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

Map of Special Service Areas

The Map Chicago Website allows users to view neighborhoods, communities, political boundaries and points of interest throughout the city of Chicago. The percentage of the Map Chicago website uptime, the amount of time the site was available, and the target uptime for each week are available by mousing over columns. The target availability for this site is 99.5%.

About

There have been several blog posts about open data in Chicago (see here and here) - though there doesn't seem to be a single registry of open data.

Political/administrative boundary data sets are available at:

• Boundary Data

Datasets include:

• Census Block
• Census Data -- November 2004
• Census Tracts
• City Boundary
• Citywide Wards Map
• Community Areas
• IL House
• IL Senate
• Surrounding Municipalities
• Neighborhoods
• Precincts
• TIFS 2008
• US Congress
• Zipcodes

Openness

Assume this is intended to be open, but no information found on whether or not data can legally be reused.

Attendance boundaries for elementary schools in the Chicago Public Schools district for school year 2019-2020. Generally, all students in the applicable elementary school grades who live within one of these boundaries may attend the school. This dataset is in a forma??t for spatial datasets that is inherently tabular but allows for a map as a derived view. Please click the indicated link below for such a map. To export the data in either tabular or geographic format, please use the Export button on this dataset.

Current community area 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.

Zoning district boundaries by type and classification.Chicago is divided into zoning districts that regulate land use activities across the city. Data is based on the Chicago Zoning Ordinance and Land Use Ordinance (https://codelibrary.amlegal.com/codes/chicago/latest/chicagozoning_il/0-0-0-48006). Zoning Types are defined in this ordinance. For additional information about business uses, review the License/Zoning Reference (LZR) Guide (http://bit.ly/vvGzne), which is based on the Municipal Code and is intended to assist business owners in determining the proper zoning district and primary business license for specific business types. Related Applications: Zoning Map (https://gisapps.cityofchicago.org/zoning/)

ZIP Code 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).

Content

This dataset and corresponding map provide the location, satellite images and square footage of existing green roofs within the City of Chicago. This information is derived from an analysis of high-spatial resolution (50cm), pan-sharpened, ortho-rectified, 8-band multi-spectral satellite images collected by Digital Globe’s Worldview-2 satellite. The City supplied the consultant with a 2009 City boundary shapefile to determine the required extent of the imagery. Acquisition of three different strips of imagery corresponding to the satellite’s paths was required. These strips of imagery spanned three consecutive months and were collected in August 2010 (90% coverage), September 2010 (5% coverage) and October 2010 (5% coverage). The results of the analysis include overall count of vegetated roofs, their total square footage, and the ratio of required to elective vegetated roofs. A total of 359 vegetated roofs were identified within the City of Chicago. The total square footage of these vegetated roofs was calculated to be approximately 5,469,463 square feet. The ratio of required vegetated roofs to elective vegetative roofs was 297:62 (~5:1). The median size of the vegetated roofs was calculated to be 5,234 square feet.

Context

This is a dataset hosted by the City of Chicago. The city has an open data platform found here and they update their information according the amount of data that is brought in. Explore the City of Chicago using Kaggle and all of the data sources available through the City of Chicago organization page!

• Update Frequency: This dataset is updated daily.

Acknowledgements

This dataset is maintained using Socrata's API and Kaggle's API. Socrata has assisted countless organizations with hosting their open data and has been an integral part of the process of bringing more data to the public.

Cover photo by Ravi Pinisetti on Unsplash
Unsplash Images are distributed under a unique Unsplash License.

Attendance boundaries for high schools in the Chicago Public Schools district for school year 2023-2024.

This dataset is in a forma​​t for spatial datasets that is inherently tabular but allows for a map as a derived view. Please click the indicated link below for such a map.

To export the data in either tabular or geographic format, please use the Export button on this dataset.

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.

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.

This EnviroAtlas dataset presents environmental benefits of the urban forest in 6409 block groups in the Chicago Metro Region. Carbon attributes, temperature reduction, pollution removal and value, and runoff effects are calculated for each block group using i-Tree models (www.itreetools.org), local weather data, pollution data, EPA provided city boundary and land cover data, and U.S. Census derived block group boundary data. This dataset was produced by the USDA Forest Service with support from The Davey Tree Expert Company to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).