My mother has passed away and I have boxes of adult diapers I would like to donate. I live in Chicago can someone help?

Donate them to senior care facility, hospice facility, salvation army, homeless shelter, hospital, a local board and care, senior adult day care facility, local "offer up", local organizations. Or even animal shelters. They could use them as beddings for pets.

what kind and what size?

I could them for my mother if they are a size large

If unopened and sterile I would think any hospice organization would be thrilled to get them, or know who would. How kind of you. Sympathy for your loss.

Jeanette, sorry for the loss of your mother. Thoughts and prayers are with you during this difficult time. May God grant you peace and strength.
Diaper banks, churches, halfway houses and shelters are some options. Google address, and phone numbers. You are so thoughtful about the donation to help others. Hugs!

I have in the past donated unopened boxes of adult diapers to our local Senior Services. They were very grateful to receive them. They said they could only take unopened boxes though. I'm sure Chicago must have a "Senior Services", so perhaps start there.