A square mile is way more than needed. it is 640 acres. My parents recently retired out to a small farm in Missouri with 60 acres. With even 1/5th of that you w

A square mile is way more than needed. it is 640 acres. My parents recently retired out to a small farm in Missouri with 60 acres. With even 1/5th of that you would not have to see or hear neighbors. And assuming everyone around you has an equal amount, that is quite a buffer.