If you're live trapping, the recommendation is a min. of 5mi. on the relocate site.
I'm across the street from a channel going into a small lake, I have a marsh 1/2 mile away on one side and an Crop fields (corn, soy, sorghum, winter wheat wheat) on the other side. I've relocated maybe a dozen raccoons and a few 'possums.
A temporary fix is Dog urine, have the dog 'mark' around the pond area. If you don't own a dog, most of us dog owners would be happy to help.
That won't work forever, just until they figure out there's no dog on duty.
Our Raccoon, Possum & Skunk populations are down as we now have too many Coyotes.