Bloomingdale is located along the northwestern border of Chatham County at (32.124122, -81.307211). It is bordered to the northeast by
Port Wentworth, to the east by
Pooler, to the south by a western portion of
Savannah, and to the northwest by
Effingham County.
U.S. Route 80 runs east–west through the center of Bloomingdale, and
Interstate 16 runs parallel to it through the southern part of the city, with access from Exit 152. Both highways lead east to downtown Savannah. According to the
United States Census Bureau, Bloomingdale has a total area of , of which is land and , or 8.90%, is water. ==Demographics==