Duluth is located in north Georgia. Duluth is between the Gwinnett, Fulton, Forsyth county. Duluth has 9.99 square miles of land area and 0.16 square miles of water area. As of 2010-2014, the total Duluth population is 27,821, which has grown 25.76% since 2000. The population growth rate is higher than the state average rate of 21.03% and is much higher than the national average rate of 11.61%. Duluth median household income is $56,849 in 2010-2014 and has has shrunk by 5.39% since 2000. The income growth rate is much lower than the state average rate of 16.28% and is much lower than the national average rate of 27.36%. Duluth median house value is $174,200 in 2010-2014 and has shrunk by -14.30% since 2000. The house value growth rate is much lower than the state average rate of 33.09% and is much lower 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 Duluth is much better than the state average in quality. The Duluth area codes are 678, 770.