Bayville is located in southeast New York. Bayville is part of Nassau County. Bayville has 1.45 square miles of land area and 0.10 square miles of water area. As of 2010-2014, the total Bayville population is 6,724, which has shrunk 5.76% 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%. Bayville median household income is $98,704 in 2010-2014 and has grown by 44.35% since 2000. The income growth rate is higher than the state average rate of 35.25% and is much higher than the national average rate of 27.36%. Bayville median house value is $549,100 in 2010-2014 and has grown by 88.44% since 2000. The house value growth rate is about the same as 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 Bayville is much better than the state average in quality. The Bayville area code is 516.