Westphalia is located close to the center of Missouri. Westphalia is part of Osage County. Westphalia has 0.53 square miles of land area and has no water area. As of 2010-2014, the total Westphalia population is 353, which has grown 10.31% since 2000. The population growth rate is higher than the state average rate of 7.74% and is lower than the national average rate of 11.61%. Westphalia median household income is $50,078 in 2010-2014 and has grown by 39.75% since 2000. The income growth rate is much higher than the state average rate of 25.91% and is higher than the national average rate of 27.36%. Westphalia median house value is $131,900 in 2010-2014 and has grown by 51.44% since 2000. The house value growth rate is about the same as the state average rate of 52.06% 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 Westphalia is much better than the state average in quality. The Westphalia area code is 573.