Royalton is located in south Illinois. Royalton is part of Franklin County. Royalton has 1.12 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Royalton population is 1,032, which has shrunk 8.67% since 2000. The population growth rate is much lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Royalton median household income is $31,571 in 2010-2014 and has grown by 31.84% since 2000. The income growth rate is higher than the state average rate of 22.70% and is higher than the national average rate of 27.36%. Royalton median house value is $46,700 in 2010-2014 and has grown by 31.92% since 2000. The house value growth rate is lower 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 Royalton is worse than the state average in quality. The Royalton area code is 618.