Seaford is located in southeast New York. Seaford is part of Nassau County. Seaford has 2.61 square miles of land area and 0.05 square miles of water area. As of 2010-2014, the total Seaford population is 15,405, which has shrunk 2.44% since 2000. The population growth rate is much lower than the state average rate of 3.26% and is much lower than the national average rate of 11.61%. Seaford median household income is $104,479 in 2010-2014 and has grown by 32.97% since 2000. The income growth rate is lower than the state average rate of 35.25% and is higher than the national average rate of 27.36%. Seaford median house value is $431,800 in 2010-2014 and has grown by 82.19% since 2000. The house value growth rate is lower than the state average rate of 90.79% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Seaford is better than the state average in quality. The Seaford area code is 516.