[2] The location of what is now the Village of Plandome was originally inhabited by Matinecock Native Americans.

[3] These Native American inhabitants called the area Sint Sink, meaning "place of small stones.

"[3][4] During the 17th century, Dutch and English colonists began to settle the area, with fishing in Manhasset Bay and farming serving as a major industries.

[3][5][6] In 1623, Cow Neck was claimed by the Dutch West India Company, and they began forcing English settlers to leave in 1640.

[3][5][6][7] The Mitchill family, which settled in the area in 1694, owned a significant portion of the land which would eventually become the village – as did the George Willets, of the Willets family, which has long had a large presence on Cow Neck and across Long Island.

[5][6][7] The Great Neck and Port Washington Railroad, a subsidiary of the Long Island Rail Road, built what is today known as the Port Washington Branch through the community in 1898; Plandome became a flag stop until the opening of the permanent Plandome station in 1909.

[12][13] During the first few years of the 20th century, four friends – all young men residing in New York City – purchased approximately 90 acres (36 ha) of the property owned by the Mitchill family.

[10][11][15] It was subsequently rebuilt – in addition to having its platform lengthened and refurbished – by 1990; the Plandome Post Office would also be rebuilt within the structure – this time in its own, dedicated space on the ground floor, beneath the station's waiting room.

The Almeron and Olive Smith House at 50 South Drive is dated to 1907 and was listed on the National Register of Historic Places in 2006.

[21] According to the United States Environmental Protection Agency and the United States Geological Survey, the highest point in Plandome is located on Parkwoods Road at the Plandome–Flower Hill border in the southeastern part of the village, at roughly 150 feet (46 m), and the lowest point is Manhasset Bay, which is located at sea level.

As of January 2025, the Mayor of Plandome is John “Jake” Kurkjian, the Deputy Mayor is Don Richardson, and the Trustees are Dr. Robert Broderick, James Corcoran, Esq., Don Richardson, and Damien Quinn.

[42][43] Plandome is located within New York's 16th State Assembly district, which as of January 2025 is represented by Daniel J. Norber (R–Great Neck).

[42][46] Plandome is located in New York's 3rd congressional district, which as of January 2025 is represented in the United States Congress by Thomas R. Suozzi (D–Glen Cove).

[42][47] Like the rest of New York, Plandome is represented in the United States Senate by Charles Schumer (D) and Kirsten Gillibrand (D).

[49][50] The Village of Plandome is located entirely within the boundaries of the Manhasset Union Free School District.

[54] The Plandome station on the Long Island Rail Road's Port Washington Branch is located within the village.

[34][35][36] Furthermore, the Plandome Post Office is located within the station building, on the ground floor, below the waiting room.

[57][58] PSEG Long Island provides power to all homes and businesses within Plandome.