I saw 6 within a 10 foot area near a den that was in the side of a red dirt bank. This was about 8 years back when i lived in Marion County. The bank was next to a farm field.
I didnt stick around to see how many more was there. The den looked like an armidillo dug hole. I do remember this was one of the first warm days in the early spring, just after day break.
All snakes were less then 3 foot in lenght from best i could tell.