I've lived all the way the USA, from the Atlantic to the Pacific, from the Mexican border to the Canadian border. The size of Whitetail deer is varied depending on location, available food, climate, hunting pressure etc.. I've seen full grown deer that were the size of a Labrador dog on up. I shot a 4x4 white tail in Missouri whose antlers were about the size of my hands, maybe smaller. My dad shot a White tail buck that after the head and part of the neck was cut off and the deer was cleaned was heavier than him - dad weighed 230 lb. Dad and I pulled him up in the air in our barn using a pulley and when I let go dad went up in the air.
The largest deer seems to be the ones being inadvertently fed corn and grain by a farmer. The smallest ones seem to be in heavily hunted areas where while there's lot of deer, there isn't a lot of nutritious food.
