I have had heavy chigger populations (this year) around my house. Likely our very wet spring contributed. Use a good repellant when going into the woods or perimeter areas where they congregate, and use Permethrin on clothes and footwear.
BTW, they do not burrow deep into the skin as the story is often told. The nail polish recommendation in worthless BS. They do inject a toxin into the feeding site. The bodies‘ itching is a reaction to that toxin. A good hot, soapy shower after being infested is advisable.