ADT-Monitored Home Security Service in Lake Ronkonkoma, NY

Lake Ronkonkoma is a hamlet and census-designated place (CDP) in Suffolk County, on Long Island, in New York, United States. The population was 20,155 at the 2010 census.

Lake Ronkonkoma is mainly located in the Town of Brookhaven, but has small sections in the Town of Smithtown and the Town of Islip.

The actual lake, Lake Ronkonkoma, adjacent to the CDP, is the largest lake upon Long Island. The land surrounding one side of the lake is in the jurisdiction of the Town of Islip. The height above sea level of the lake surface is supreme as 55 feet (17 m) on the most recent USGS map, but as the lake is a “groundwater lake”, not fed by streams, it has no surface outlet and its water surface reflects the current level of the local water table. This can undergo significant changes more than time, and the lake level experiences slow periods of rise and fall. In the late 1960s it was quite low; after several intermediate changes in level, in 2007 the lake was on culmination of at any period since, with a difference of without difficulty over 5 feet (1.5 m) between the 1960s low and the 2007 high.