Anyone know what Congress is being used for the 2016-2020 data, summary level 510?
The geofile layout says only "CDCURR -- Current Congressional District". What is "current" in this context?
This page is the go-to for all questions about geographic boundary vintages by ACS release:https://www.census.gov/programs-surveys/acs/geography-acs/geography-boundaries-by-year.html
2020 ACS data use 116th CD boundaries.