The bay and river are named after the Raritans, a tribe of the Lenape, who lived in the immediate area around the bay during the 17th century at the time of the arrival of the Dutch colonists.
Throughout the history, the bay has been a prime fishing ground, especially for commercial oyster fishing, until the 20th century. The bay is crossed by a dredged channel allowing commercial ships to enter the Arthur Kill.
The bay is bounded on the north by Staten Island in New York City, on the south by Monmouth County, New Jersey, and on the east by the Naval Weapons Station Earle pier.
The bay and river are named after the Raritans, a tribe of the Lenape, who lived in the immediate area around the bay during the 17th century at the time of the arrival of the Dutch colonists.