Demarest is a borough in Bergen County, New Jersey, United States. Located in the northeastern corner of New Jersey and its Gateway Region, Demarest is part of the New York City Metropolitan Area. Demarest was formed by an act of the New Jersey Legislature on April 8, 1903, from portions of Harrington Township and Palisades Township. The borough was named for the Demarest family and for the Demarest train station, which had in turn been named for Ralph S. Demarest, who was a director of the Northern Railroad of New Jersey that built the station and had represented the area in both the New Jersey General Assembly and the New Jersey Senate in the mid-19th century.

Students in ninth through twelfth grades attend Northern Valley Regional High School at Demarest in Demarest, together with students from Demarest and Haworth. The high school is part of the Northern Valley Regional High School District, which also serves students from Harrington Park, Northvale, Norwood and Old Tappan at Northern Valley Regional High School at Old Tappan. Northern Valley Regional High School at Demarest was the 42nd-ranked public high school in New Jersey out of 339 schools statewide, in New Jersey Monthly magazine’s September 2014 cover story on the state’s “Top Public High Schools”, after being ranked 34th in 2012.

The median income for a household in the borough was $103,286, and the median income for a family was $113,144. Males had a median income of $82,597 versus $43,750 for females. The per capita income for the borough was $51,939. About 0.9% of families and 1.6% of the population were below the poverty line, including 0.7% of those under age 18 and 1.6% of those age 65 or over.


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