The frog pictured is indeed a leopard frog, but is an unusually pigmented one. Called a Burn's (or Burnsi) leopard frog it is brown and lacks the green coloration and dark spots of the usual leopard frog. There are often significant local populations of these unusually pigmented individuals in some areas.
Wet meadows or open fields near water features.
In the thirteen years I've lived at my present home, I have found only one in the yard, which is at least 300 meters from water. These frogs were once common, but have undergone a significant population reduction in recent years, along with so many other amphibians.