Hopatcong is located in north New Jersey. Hopatcong is part of Sussex County. Hopatcong has 10.85 square miles of land area and 1.39 square miles of water area. As of 2010-2014, the total Hopatcong population is 14,921, which has shrunk 6.09% since 2000. The population growth rate is much lower than the state average rate of 5.47% and is much lower than the national average rate of 11.61%. Hopatcong median household income is $85,357 in 2010-2014 and has grown by 29.72% since 2000. The income growth rate is about the same as the state average rate of 30.67% and is higher than the national average rate of 27.36%. Hopatcong median house value is $242,400 in 2010-2014 and has grown by 71.55% since 2000. The house value growth rate is lower than the state average rate of 87.30% 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 Hopatcong is worse than the state average in quality. The Hopatcong area code is 973.