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1938 HOLC redlining grades on Chicago's West Side joined to today's vacancy, school-closure, and food-access data.
HOLC-to-2020-tract crosswalk for Austin, East Garfield Park, and North Lawndale, paired with six quantitative outcome indicators and the Cook County Assessor 2024 residential-vacancy panel at the tract level. The cleaned Rooted Forward archive is in preparation; in the meantime, every record below traces to a public source.
The cleaned Rooted Forward replication archive for this paper is in preparation. Until it is released, every record below traces to a public upstream source. These are the same files we draw on, hosted by their primary publishers.
Mapping Inequality (HOLC zones, all U.S. cities)
Direct GeoJSON and area-description downloads under CC BY-NC-SA 4.0.
https://dsl.richmond.edu/panorama/redlining/
Cook County Assessor · Property Data
Bulk parcel and vacancy files updated annually.
https://www.cookcountyassessor.com/property-data
USDA Food Access Research Atlas (2024 update)
Tract-level low-income / low-access designation.
https://www.ers.usda.gov/data-products/food-access-research-atlas/
U.S. Census ACS 2023 5-year estimates
Demographics and tenure at the tract level.
https://data.census.gov/
Files in the archive
holc-west-side-tract-crosswalk.geojson
HOLC zone polygons crosswalked to 2020 census tracts.
holc-west-side-outcomes.csv
Tract-level outcome panel: vacancy, closures, food access.
holc-west-side-analysis.R
Replication code reproducing every figure in the paper.
License
Code MIT, derived data CC BY 4.0, 1938 zone polygons CC BY-NC-SA 4.0 (Mapping Inequality, Nelson et al. 2016).
The columns and types you can expect once the archive is live. Sample rows are intentionally omitted; we publish only verified records, not synthetic placeholders.
Schema · 5 columns · no sample rows
| Column | Type | Description |
|---|---|---|
| geoid_2020 | text | 2020 census tract GEOID |
| holc_grade | text | A, B, C, or D |
| vacancy_rate_2024 | numeric | CCAO residential-vacancy rate, percent |
| closed_school_2013 | boolean | Tract contained a school closed in 2013 |
| food_access_low |
| boolean |
| USDA low-income low-access designation, 2024 |