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is a community and census-designated place in Nassau County, New York, United States. The population was 11,844 at the 2000 census.
North Merrick is located on the south shore of Long Island. It is known for being a middle class neighborhhod and having a large Italian and Irish population.
According to the United States Census Bureau, the CDP has a total area of 1.8 square miles (4.6 km²), of which, 1.8 square miles (4.6 km²) of it is land and 0.56% is water.