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Chicago wards and precincts (effective 2015)

Home Page: https://paulsmith.github.io/chicago_wards_and_precincts/

Makefile 30.12% Go 55.55% PLpgSQL 14.33%

chicago_wards_and_precincts's Introduction

Chicago wards and precincts shapefiles

These Chicago wards and precincts boundary shapefiles are effective as of 2015. As of Thursday, February 26, 2015, the shapefiles on the City of Chicago’s data portal are stale—they are the boundaries from before the city council voted to redraw them in 2012.

Source

The original source material was provided by the Chicago Board of Elections in response to a FOIA request, in the form of 50 shapefiles corresponding to precinct boundaries and attributes in each Chicago ward.

I applied minimal post-processing to produce various formats, and to generate ward boundaries by aggregating precincts and unioning their geometries. See the etl directory for the programs that perform the processing.

Contact

Email Paul Smith with questions or comments: [email protected]

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