About This Place
Holbrook is a hamlet and census-designated place (CDP) in Suffolk County, New York, United States. The population was 27,512 at the 2000 Census.
Holbrook is located at 40°47′59″N 73°4′32″W / 40.79972°N 73.07556°W / 40.79972; -73.07556 (40.799650, -73.075617).
According to the United States Census Bureau, the CDP has a total area of 6.8 square miles (17.7 km²), all land.