Rockland County is the southernmost county on the west side of the Hudson River in the U.S. state of New York, part of the New York City Metropolitan Statistical Area. The county's population, as of the 2010 census, was 311,687, increasing by 5.5% to a 2017 Census estimate of 328,868, making it the third-most densely populated county outside New York City within New York State. The county seat is New City. Rockland County is a suburb of New York City that borders the boroughs about 9 miles northwest of the city at their closest points, and is accessible via the New York State Thruway, after 10 exits. The name derives from "rocky land", as the area has been aptly described.
Rockland County is the smallest county by area in New York State outside New York City. It comprises five towns and nineteen incorporated villages, with numerous unincorporated villages and hamlets.
Coordinates 41°8'49.17" N -73°59'25.08" E