I am trying to look at living situation for young adults 20-25 and control for whether or not they live with their parents. I know there is a variable for lives with mother and lives with father, but is there another more general variable for living situation? Thanks!
Unfortunately, there is not a variable available that describes living situation in such a manner. You would need to use the RELATE values within a household to identify interrelationships, based on relationship to the head of household. You can read more about how IPUMS created the family interrelationship variables here.
Note that the IPUMS-USA dataset has a MULTGEN variable that identifies the number of distinct generations contained in a household.
Hope this helps.