Richmond County, NY
History
Staten Island is the southernmost borough of New York City, coextensive with Richmond County and situated at the southern most point of New York. In 1683, the colony of New York was divided into ten counties. As part of this process, Staten Island, as well as several minor neighboring islands, was designated as Richmond County. The name derives from the title of Charles Lennox, 1st Duke of Richmond, an illegitimate son of King Charles II. The first county seat was established in New Dorp in what was called Stony Brook at the time. In 1729, the county seat was moved to the village of Richmond Town, located at the headwaters of the Fresh Kills near the center of the island. By 1771, the island's population had grown to 2,847.Source: Wikipedia
Modern Day Adjacent Counties
Hudson County (NJ) — north and northeastUnion County (NJ) — northwest
Middlesex County (NJ) — west and southwest
Monmouth County (NJ) — south
Kings County — east
New York County — northeast