Cornwall is located in southeast Pennsylvania. Cornwall is part of Lebanon County. Cornwall has 9.70 square miles of land area and 0.05 square miles of water area. As of 2010-2014, the total Cornwall population is 4,166, which has grown 19.51% since 2000. The population growth rate is much higher than the state average rate of 3.89% and is much higher than the national average rate of 11.61%. Cornwall median household income is $80,391 in 2010-2014 and has grown by 35.00% since 2000. The income growth rate is higher than the state average rate of 32.44% and is higher than the national average rate of 27.36%. Cornwall median house value is $221,500 in 2010-2014 and has grown by 61.33% since 2000. The house value growth rate is lower than the state average rate of 70.00% and is 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 Cornwall is better than the state average in quality. The Cornwall area code is 717.