Old Tappan ( ) is a borough in northern Bergen County, in the U.S. state of New Jersey. As of the 2020 United States census, the borough's population was 5,888, an increase of 138 (+2.4%) from the 2010 census count of 5,750, which in turn reflected an increase of 268 (+4.9%) from the 5,482 counted in the 2000 census.
Old Tappan was incorporated as a borough by an act of the New Jersey Legislature on October 18, 1894, from portions of Harrington Township, based on the results of a referendum held two days earlier. The borough was formed during the "Boroughitis" phenomenon then sweeping through Bergen County, in which 26 boroughs were formed in the county in 1894 alone. On April 23, 1896, additional territory was annexed from Harrington Township. The borough's name is derived from the Tappan tribe of Native Americans.
Geography
According to the United States Census Bureau, the borough had a total area of 4.163 square miles (10.78 km2), including 3.315 square miles (8.59 km2) of land and 0.848 square miles (2.20 km2) of water (20.38%).
One of only four confluence points in New Jersey, the 41°N 74°W crossing, is in Old Tappan on watershed property owned by United Water.
The borough is bordered to the north by the hamlets of Pearl River and Tappan in the town of Orangetown in Rockland County, New York. Lake Tappan and the Hackensack River are on the western side of the town, bordering River Vale. Harrington Park is to the south and Northvale and Norwood are to the east.
Demographics
2010 census
The 2010 United States census counted 5,750 people, 1,931 households, and 1,593 families in the borough. The population density was . There were 1,995 housing units at an average density of . The racial makeup was 74.78% (4,300) White, 0.73% (42) Black or African American, 0.09% (5) Native American, 22.24% (1,279) Asian, 0.00% (0) Pacific Islander, 0.63% (36) from other races, and 1.53% (88) from two or more races. Hispanic or Latino of any race were 5.01% (288) of the population. Korean Americans accounted for 17.1% of the population.
Of the 1,931 households, 40.0% had children under the age of 18; 73.1% were married couples living together; 7.5% had a female householder with no husband present and 17.5% were non-families. Of all households, 16.1% were made up of individuals and 10.8% had someone living alone who was 65 years of age or older. The average household size was 2.98 and the average family size was 3.35.
27.4% of the population were under the age of 18, 6.0% from 18 to 24, 18.0% from 25 to 44, 32.5% from 45 to 64, and 16.1% who were 65 years of age or older. The median age was 44.2 years. For every 100 females, the population had 93.1 males. For every 100 females ages 18 and older there were 88.2 males.
The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $125,435 (with a margin of error of +/− $30,643) and the median family income was $158,140 (+/− $27,026). Males had a median income of $90,536 (+/− $18,555) versus $61,875 (+/− $9,686) for females. The per capita income for the borough was $58,673 (+/− $7,319). About 2.4% of families and 2.4% of the population were below the poverty line, including 0.8% of those under age 18 and none of those age 65 or over.
Same-sex couples headed 8 households in 2010, an increase from the 6 counted in 2000.
2000 census
As of the 2000 United States census there were 5,482 people, 1,778 households, and 1,541 families residing in the borough. There were 1,804 housing units at an average density of . The racial makeup of the borough was 82.69% Caucasian, 15.63% Asian, 0.60% African American, 0.05% Native American, 0.44% from other races, and 0.58% from two or more races. Hispanics or Latinos of any race were 2.75% of the population.
In 2000, there were 1,778 households, out of which 42.6% had children under the age of 18 living with them, 77.7% were married couples living together, 6.7% had a female householder with no husband present, and 13.3% were non-families. 12.1% of all households were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older. The average household size was 3.02 and the average family size was 3.28.
In the borough the population was spread out, with 27.0% under the age of 18, 5.9% from 18 to 24, 24.3% from 25 to 44, 28.3% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 92.4 males. For every 100 females age 18 and over, there were 89.0 males.