Simpsonville is located in northwest South Carolina. Simpsonville is between the Greenville, Laurens county. Simpsonville has 8.81 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Simpsonville population is 19,219, which has grown 33.91% since 2000. The population growth rate is much higher than the state average rate of 17.83% and is much higher than the national average rate of 11.61%. Simpsonville median household income is $55,910 in 2010-2014 and has grown by 18.40% 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%. Simpsonville median house value is $137,100 in 2010-2014 and has grown by 30.95% since 2000. The house value growth rate is lower than the state average rate of 44.99% 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 Simpsonville is better than the state average in quality. The Simpsonville area code is 864.