The Jay Estate is a 23-acre park and historic site in Rye, New York, with the 1838 Peter Augustus Jay House at its center. It is the keystone of the Boston Post Road Historic District, a National Historic Landmark District (NHL) created in 1993. The site is the surviving remnant of the 400-acre (1.6 km2) farm where US Founding Father, John Jay, grew up. It is also the place where Jay returned to celebrate the end of the American Revolutionary War, after he negotiated the 1783 Treaty of Paris with fellow peacemakers John Adams and Benjamin Franklin. The preserved property is located on the south side of the Boston Post Road and has a 3⁄4-mile (1.2 km) view of Milton Harbor.

Rye is a coastal city in Westchester County, New York, United States, located near New York City and within the New York City metropolitan area. It is separate from the Town of Rye, which has more land area than the city. The City of Rye, formerly the Village of Rye, was part of the Town until it received its charter as a city in 1942, making it the youngest city in the State of New York. Its population density for its 5.85 square miles of land is roughly 2,729.76/sq mi.