Franklin Square is a hamlet and census-designated place (CDP) in Nassau County, New York, United States. The hamlet is an unincorporated area in the Town of Hempstead. The population was 29,320 at the 2010 census.
Franklin Square is located at 40°42′6″N 73°40′36″W (40.701722, -73.676549).
According to the United States Census Bureau, the CDP has a total area of 2.9 square miles (7.5 km2), all land. Franklin Square is bordered on the north by Stewart Manor, northeast by Garden City and Garden City South, southwest by North Valley Stream, east by West Hempstead, and west by Elmont.
As of the 2010 United States Census the population was 29,320. The makeup of the population was 75.1% Non-Hispanic White, 3.2% African American, 0.11% Native American, 7.2% Asian, 0.01% Pacific Islander, 1.75% from other races, and 2% from two or more races. Hispanic or Latino of any race were 13.3% of the population.
As of the 2000 United States Census there were 29,342 people, 10,187 households and 7,833 families residing in the CDP. The population density was 10,169.2 per square mile (3,920.1/km2). There were 10,364 housing units at an average density of 3,591.9/sq mi (1,384.6/km2). The racial makeup of the CDP was 93.97% White, 0.99% African American, 0.11% Native American, 1.79% Asian, 0.01% Pacific Islander, 1.75% from other races, and 1.38% from two or more races. Hispanic or Latino of any race were 6.89% of the population.