I'm wondering if anyone can nudge me in the right direction. I'm trying to divvy up ACS congressional district data (116th session) into 118th session districts (since 118th isn't available yet). Is there something like a crosswalk file that accomplishes this already? I've done some searching but haven't come across one yet and am hoping I'm just overlooking it. I've currently created a union of the spatial files of the two sessions, but still need to apportion some 116th district polygons because they overlap 118th boundaries.
You could use Geocorr:
https://mcdc.missouri.edu/applications/geocorr2022.html
I agree Geocorr is a great resource for this, but I'd strongly recommend against a simple 116th to 118th crosswalk if you can avoid that. Instead, I'd crosswalk from smaller units to 118th CDs... blocks…
FYI--The Census Bureau released 2021 ACS 1-year Data Profiles for the 118th Congressional Districts at www.census.gov/.../.
That's great - I didn't realize that Geocorr could go across DCS geographies! Very useful.