Irmo is located close to the center of South Carolina. Irmo is between the Richland, Lexington county. Irmo has 6.26 square miles of land area and has no water area. As of 2010-2014, the total Irmo population is 11,518, which has grown 4.34% since 2000. The population growth rate is much lower than the state average rate of 17.83% and is much lower than the national average rate of 11.61%. Irmo median household income is $55,829 in 2010-2014 and has has shrunk by 0.03% since 2000. The income growth rate is lower than the state average rate of 21.44% and is lower than the national average rate of 27.36%. Irmo median house value is $124,100 in 2010-2014 and has shrunk by -32.30% since 2000. The house value growth rate is lower than the state average rate of 44.99% 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 Irmo is much better than the state average in quality. The Irmo area code is 803.