Berkeley Lake is a city in Gwinnett County, Georgia, United States. It is a northern suburb of Atlanta. From its 1956 origins as a summer retreat, Berkeley Lake has grown into a well-off community centered on its 88-acre (360,000 m) namesake lake. As of the 2020 census, the city had a population of 2,054. It has been named a Tree City USA for 18 years.

The majority of lands in the city limits (the 700-acre (2.8 km) Berkeley Lake Properties) were developed by Frank Coggins in the late 1940s. The dam, constructed in 1948, is one of the largest earthen dams in the state. The city’s namesake, Lake Berkeley (77 acres (310,000 m²)), was named after Mr. Coggins’ Berkeley Blue Granite Quarries in Elberton. In 1950 the Berkeley Lake “subdivision,” which included five reserved Free Pass and Repass tracts (FPR) and the residential and fishing lots in tab to the lake, was laid out. In 1952, Calvin and Kate Parsons, along later than John and Dorothy Bagwell, purchased the Berkeley Realty & Investment Company and its 700-acre (2.8 km) property.

For many years, Berkeley Lake was primarily a summer retreat, with an assortment of fishing cottages mingling as soon as a slowly growing number of unshakable homes. The health of the lake was guarded by a small, but tenacious, core of residents, each lending their ability and time.

In 1953, some 25 property owners met and formed the Lake Berkeley Civic Association. Besides zoning and developmental control, there were important needs such as electricity, telephones, and “an whatever year road” around the lake. This obsession for sustain that an incorporated city could help safe brought about the introduction of its charter, which was attributed by the General Assembly of Georgia upon March 6, 1956. A supplementary municipality to be known as the City of Berkeley Lake was created in Gwinnett County.