About HaskellMade up of mostly modest to upscale one family homes and houses, Haskell NJ also features mid priced garden apartments, upscale townhouse complexes and two family homes. Although thought of as a separate town it is actually part of the town of Wanaque in Passaic County. The area has a population of 4,800 people and its own zip code. It has one elementary school that services Kindergarten thru 8th grade. The students attend Lakeland Regional located in Wanaque for high school along with Ringwood. Route 287 is the primary highway in the area.