Newtonia is located in southwest Missouri. Newtonia is part of Newton County. Newtonia has 0.33 square miles of land area and has no water area. As of 2010-2014, the total Newtonia population is 210, which has shrunk 9.09% since 2000. The population growth rate is much lower than the state average rate of 7.74% and is much lower than the national average rate of 11.61%. Newtonia median household income is $30,938 in 2010-2014 and has has shrunk by 10.00% since 2000. The income growth rate is much lower than the state average rate of 25.91% and is much lower than the national average rate of 27.36%. Newtonia median house value is $67,700 in 2010-2014 and has shrunk by -78.63% since 2000. The house value growth rate is much higher than the state average rate of 52.06% and is much 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 Newtonia is better than the state average in quality. The Newtonia area code is 417.