Legend
Self-Identified Ancestries using ElectionCord’s 100K Districts (Per ACS and Redistricter). Only districts with at least 25% of a certain ethnicity (ex. White) are included on each map. Note that all ancestries mentioned are from the US Census, so even if something like “American” doesn’t make much sense, it’s listed as an option to choose when filling out the Census.
Find the spreadsheet here.