Lake Como is located on the Crescent City Ridge in south central Putnam County, Florida. The area consists of sand hills with peak elevations between 24 to 30 m (80 to 100 ft) NGVD that are bordered on the west by the floodplain of the St. Johns River and Lake George and Crescent Lake basin on the east. Lakes within the ridge system are smaller (< 1 km) and irregular in shape as they occupy troughs within the sand hills. Lake Como is a good example of this irregular shoreline, with a perimeter of just under 8 km (5 mi) yet covering an area of only 1.4 km². Lake level is about 12.2 m (40 ft) NGVD. In the immediate vicinity around the lake are numerous smaller lakes. Several are connected via surface flow to Lake Como.