Oceanside is located in southeast New York. Oceanside is part of Nassau County. Oceanside has 4.94 square miles of land area and 0.47 square miles of water area. As of 2010-2014, the total Oceanside population is 30,329, which has shrunk 7.34% 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%. Oceanside median household income is $97,922 in 2010-2014 and has grown by 29.32% 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%. Oceanside median house value is $437,300 in 2010-2014 and has grown by 81.15% 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 Oceanside is much better than the state average in quality. The Oceanside area code is 516.