what county is st. marys ga in
St. Marys is located along the southern border of Camden County at 30Â°45â²23â³N 81Â°34â²17â³Wï»¿ / ï»¿30.75639Â°N 81.57139Â°Wï»¿ / 30.75639; -81.57139 (30.756264, -81.571287), on the north bank of the St. Marys River. The state of Florida is to the south, across the river. The city of Kingsland borders St. Marys to the west.