Established in 1900, the Nassau Knolls Cemetery property is just under 40 acres and features more than 25 different sections for in-ground, mausoleum crypt, monumental, or cremation burial. Nassau Knolls Cemetery & Memorial Park is conveniently located in Nassau County on the north shore of Long Island on Port Washington Boulevard. The cemetery is impeccably maintained with well-thought-out landscaping and several large memorials. The office is located on the northern edge of the property, where our dedicated and caring staff is available to serve you and your family during this emotional time.