Karnak is located in south Illinois. Karnak is between the Pulaski, Johnson, Massac county. Karnak has 1.81 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Karnak population is 611, which has shrunk 1.29% since 2000. The population growth rate is lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Karnak median household income is $43,036 in 2010-2014 and has grown by 53.02% since 2000. The income growth rate is much higher than the state average rate of 22.70% and is much higher than the national average rate of 27.36%. Karnak median house value is $48,400 in 2010-2014 and has grown by 45.35% since 2000. The house value growth rate is higher than the state average rate of 34.33% and is about the same as 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 Karnak is worse than the state average in quality. The Karnak area code is 618.