Carbon is located in southwest Iowa. Carbon is part of Adams County. Carbon has 0.71 square miles of land area and has no water area. As of 2010-2014, the total Carbon population is 21, which has shrunk 25.00% since 2000. The population growth rate is much lower than the state average rate of 5.19% and is much lower than the national average rate of 11.61%. Carbon median household income is $30,500 in 2010-2014 and has grown by 190.48% since 2000. The income growth rate is much higher than the state average rate of 33.56% and is much higher than the national average rate of 27.36%. Carbon median house value is $17,500 in 2010-2014 and has grown by 75.02% since 2000. The house value growth rate is higher than the state average rate of 53.09% 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 Carbon is much better than the state average in quality. The Carbon area code is 515.