Hewlett is located in southeast New York. Hewlett is part of Nassau County. Hewlett has 0.88 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Hewlett population is 6,481, which has shrunk 8.20% 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%. Hewlett median household income is $105,048 in 2010-2014 and has grown by 57.85% since 2000. The income growth rate is much higher than the state average rate of 35.25% and is much higher than the national average rate of 27.36%. Hewlett median house value is $424,100 in 2010-2014 and has grown by 57.13% since 2000. The house value growth rate is much lower than the state average rate of 90.79% and is 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 Hewlett is much better than the state average in quality. The Hewlett area code is 516.