Hi Michael, thanks for the question.

Skunks and raccoons can wreak havoc on a well-groomed lawn.  Searching for food like grubs, earthworms, and insects, they can make a mess.  Getting rid of the food source is one way to reduce the damage.  If they are feeding on grubs, grub control should be considered; however, make sure you have grubs before you treat.  It is also important to use the chosen grub control at the appropriate time (see link).  Exclusion through fencing and repellants can be helpful but may not be practical.

Check out the following links:

 Managing Skunk and Raccoon Damage to Lawns | Yard and Garden (iastate.edu)

Who’s that digging in my yard: Skunks, raccoons or moles? - MSU Extension

Mysterious Damage in the Lawn | Over the Garden Fence | Illinois Extension | UIUC

How to choose and when to apply grub control products for your lawn - Turf (msu.edu)

I hope this is helpful.