The Incorporated Village of Lake Success was the temporary home of the United Nations from 1946 to 1951, occupying the headquarters of the Sperry Gyroscope Company on Marcus Avenue.

[2][3] In 1939, the United States government bought a large tract between Marcus Avenue, Lakeville Road, and Union Turnpike, to be the home to the Sperry Gyroscope Company, which built a variety of maritime, military, aerospace, and navigation products.

[4][5] The 1,500,000-square-foot (140,000 m2) facility continued to be used by various companies (including Unisys and Loral Corporation) to build defense products over ensuing decades.

In 2005, Northwell Health leased 454,000 square feet of the 1.4-million-square-foot former defense plant, and is valued at about $300 million and comes with an option to buy.

[8] In 2023, Hain Celestial Group, which had been headquartered in Lake Success for roughly a decade, moved to a new location outside of the village.

[12][13][14] According to the United States Environmental Protection Agency and the United States Geological Survey, the highest point in Lake Success is located at Great Neck South High School, at 259 feet (79 m), and the lowest point is located near Community Drive, which is between 40–50 feet (12–15 m).

[13][15] Several companies have offices within Lake Success, including Broadridge Financial Solutions, which has its headquarters located within the village.

[16] Additionally, Lake Success served as the home of Canon USA's corporate headquarters until relocating to Melville in neighboring Suffolk County in the early 2010s.

[23][27] Lake Success is located entirely within New York's 3rd congressional district, which as of August 2024 is represented in the United States Congress by Thomas R. Suozzi (D–Glen Cove).

[23][28] Like the rest of New York, Lake Success is represented in the United States Senate by Charles Schumer (D) and Kirsten Gillibrand (D).

[30][31] The heavy majority of the Village of Lake Success is located within the Great Neck Union Free School District.

A small part of the village's northeastern corner, meanwhile, is located within the Manhasset Union Free School District.

[32] The Long Island Expressway (Interstate 495) and the Northern State Parkway pass through Lake Success.

[23][38] Portions of Long Island Jewish Medical Center are located within the Village of Lake Success.

[39] As of 2024, the Lake Success Police Department consists of 23 officers, as well as three full-time and five part-time emergency dispatchers.