Upper Greenwood Lake, New Jersey
Upper Greenwood Lake is a census-designated place in Passaic and Sussex counties, in the U.S. state of New Jersey. It includes residential neighborhoods around the northern and central parts of its namesake lake. It is primarily in West Milford Township in Passaic County but extends to the northwest into Vernon Township in Sussex County. It is bordered to the west by Wawayanda State Park, to the southeast by Abram S. Hewitt State Forest, and to the northeast by the town of Warwick in Orange County, New York.
The lake drains to the northeast into Long House Creek, which descends into New York and joins Wawayanda Creek, a west-flowing tributary of Pochuck Creek, which in turn runs north to the Wallkill River, a northeast-flowing tributary of the Hudson.
Demographics
Upper Greenwood Lake was listed as an unincorporated community in the 1970 U.S. census; and then as a census designated place in the 1980 U.S. census. It was merged into the West Milford CDP prior to the 1990 U.S. census. It did not appear in subsequent censuses until it again was named a CDP in the 2020 U.S. census.| Race / Ethnicity | Pop 2020 | 2020 |
| White alone | 3,026 | 82.07% |
| Black or African American alone | 85 | 2.31% |
| Native American or Alaska Native alone | 23 | 0.62% |
| Asian alone | 55 | 1.49% |
| Native Hawaiian or Pacific Islander alone | 0 | 0.00% |
| Other race alone | 15 | 0.41% |
| Mixed race or Multiracial | 150 | 4.07% |
| Hispanic or Latino | 333 | 9.03% |
| Total | 3,687 | 100.00% |