#HOLC Polygons and 2020 CensusTracts

Census Tracts were intersected with HOLC Polygons. Census information can be joined via the "nhgis_join" field. The field "perc_tract" gives you the proportion of a given Census Tract in the HOLC Polygon. Assuming equal distribution, you can calculate any variable within a particular graded HOLC neighborhood.

If you are citing Mapping Inequality or acknowledge the source of any of the following data, we recommend the following format using the Chicago Manual of Style.

If you are citing acknowledging the source this data, we recommend the following format using the Chicago Manual of Style.

Robert K. Nelson, LaDale Winling, Richard Marciano, Nathan Connolly, et al., “Mapping Inequality,” American Panorama, ed. Robert K. Nelson and Edward L. Ayers, accessed September 18, 2020, https://dsl.richmond.edu/panorama/redlining/ and https://github.com/americanpanorama/Census_HOLC_Research/tree/main/2020_Census_Tracts

All of Mapping Inequality's spatial, textual, and other data are licensed under a creative commons license.

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