Buncombe is located in south Illinois. Buncombe is between the Johnson, Union county. Buncombe has 1.19 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Buncombe population is 216, which has grown 16.13% since 2000. The population growth rate is much higher than the state average rate of 3.62% and is higher than the national average rate of 11.61%. Buncombe median household income is $33,750 in 2010-2014 and has grown by 7.14% since 2000. The income growth rate is much lower than the state average rate of 22.70% and is much lower than the national average rate of 27.36%. Buncombe median house value is $55,800 in 2010-2014 and has grown by 42.35% since 2000. The house value growth rate is higher than the state average rate of 34.33% and is 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 Buncombe is close to the state average in quality. The Buncombe area code is 618.