Berwick is located in south Louisiana. Berwick is part of Saint Mary County. Berwick has 5.90 square miles of land area and 0.17 square miles of water area. As of 2010-2014, the total Berwick population is 4,857, which has grown 9.94% since 2000. The population growth rate is much higher than the state average rate of 2.96% and is lower than the national average rate of 11.61%. Berwick median household income is $42,465 in 2010-2014 and has grown by 27.88% since 2000. The income growth rate is lower than the state average rate of 38.15% and is about the same as the national average rate of 27.36%. Berwick median house value is $96,200 in 2010-2014 and has grown by 13.58% since 2000. The house value growth rate is much lower than the state average rate of 65.18% 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 Berwick is better than the state average in quality. The Berwick area code is 985.