Islandia is located in southeast New York. Islandia is part of Suffolk County. Islandia has 2.22 square miles of land area and has no water area. As of 2010-2014, the total Islandia population is 3,346, which has grown 9.45% since 2000. The population growth rate is much higher than the state average rate of 3.26% and is lower than the national average rate of 11.61%. Islandia median household income is $92,583 in 2010-2014 and has grown by 33.18% 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%. Islandia median house value is $315,100 in 2010-2014 and has grown by 95.96% since 2000. The house value growth rate is higher 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 Islandia is worse than the state average in quality. The Islandia area code is 631.