Massapequa is located in southeast New York. Massapequa is part of Nassau County. Massapequa has 3.56 square miles of land area and 0.44 square miles of water area. As of 2010-2014, the total Massapequa population is 22,323, which has shrunk 1.45% since 2000. The population growth rate is lower than the state average rate of 3.26% and is much lower than the national average rate of 11.61%. Massapequa median household income is $122,192 in 2010-2014 and has grown by 45.80% 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%. Massapequa median house value is $492,300 in 2010-2014 and has grown by 87.40% 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 Massapequa is much better than the state average in quality. The Massapequa area code is 516.