The area, once rolling dairy farm hillsides, was developed in the 1930s as a summer retreat for families in the New York City Metropolitan area.

Located in northern New Jersey's Sussex County, Highland Lakes is a private lake community that focuses on outdoor activities. About 2.6% of families and 3.5% of the population were below the poverty line, including 4.4% of those under age 18 and 3.3% of those age 65 or over. The per capita income for the CDP was $27,445. Males had a median income of $58,395 versus $39,968 for females. The median income for a household in the CDP was $77,968, and the median income for a family was $87,313. For every 100 females age 18 and over, there were 97.9 males. For every 100 females, there were 99.9 males. In the CDP the population was spread out, with 29.4% under the age of 18, 6.2% from 18 to 24, 34.3% from 25 to 44, 22.0% from 45 to 64, and 8.1% who were 65 years of age or older. The average household size was 2.82 and the average family size was 3.24. 18.1% of all households were made up of individuals, and 5.0% had someone living alone who was 65 years of age or older. There were 1,794 households, out of which 42.8% had children under the age of 18 living with them, 65.7% were married couples living together, 7.9% had a female householder with no husband present, and 23.3% were non-families. Hispanic or Latino of any race were 5.53% of the population. The racial makeup of the CDP was 94.88% White, 2.09% African American, 0.08% Native American, 0.48% Asian, 1.23% from other races, and 1.05% from two or more races. There were 2,283 housing units at an average density of 174.9/km 2 (452.8/mi 2). 2000 census Īs of the 2000 United States Census there were 5,051 people, 1,794 households, and 1,375 families residing in the CDP. For every 100 females ages 18 and older there were 99.8 males. For every 100 females, the population had 102.2 males. Ģ2.4% of the population were under the age of 18, 8.4% from 18 to 24, 25.9% from 25 to 44, 34.8% from 45 to 64, and 8.5% who were 65 years of age or older. The average household size was 2.63 and the average family size was 3.07. Of all households, 21.0% were made up of individuals and 5.3% had someone living alone who was 65 years of age or older. Of the 1,875 households, 33.2% had children under the age of 18 61.8% were married couples living together 8.6% had a female householder with no husband present and 26.0% were non-families. Hispanic or Latino of any race were 5.98% (295) of the population.

There were 2,342 housing units at an average density of 461.9 per square mile (178.3/km 2). The population density was 972.8 per square mile (375.6/km 2). The 2010 United States census counted 4,933 people, 1,875 households, and 1,388 families in the CDP. Demographics Historical population Census The community was mistakenly referred to as Highland Lake (missing the plural 's') by the United States Census Bureau from the 1990 to 2010 censuses Geography Īccording to the United States Census Bureau, the CDP had a total area of 6.099 square miles (15.797 km 2), including 5.071 square miles (13.134 km 2) of land and 1.028 square miles (2.663 km 2) of water (16.86%). Highland Lakes has its own Post Office with the ZIP Code 07422. As of the 2010 United States Census, the CDP's population was 4,933. Highland Lakes is an unincorporated community and census-designated place (CDP) located within Vernon Township, in Sussex County, in the U.S.

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