About AllendaleA truly picturesque community that encompasses a quaint New England charm, Allendale, New Jersey is located in Bergen County as was formed in 1894 from portions of Franklin Township, Ho-Ho-Kus Township and Orvil Township. Home to approximately 6,600 residents, Allendale is a small-town brimming with character. Homes for sale in Allendale, NJ reflect the pride of ownership that is apparent throughout the community. This pride can also be seen on every well-maintained street and within every family-friendly neighborhood. Offering excellent schools, small-town charm, and a great sense of community pride and spirit, large and well-maintained homes are the norm here in Allendale.