Waltham is located in south Minnesota. Waltham is between the Mower, Dodge county. Waltham has 0.46 square miles of land area and has no water area. As of 2010-2014, the total Waltham population is 152, which has shrunk 22.45% since 2000. The population growth rate is much lower than the state average rate of 9.44% and is much lower than the national average rate of 11.61%. Waltham median household income is $52,000 in 2010-2014 and has grown by 48.57% since 2000. The income growth rate is much higher than the state average rate of 29.12% and is much higher than the national average rate of 27.36%. Waltham median house value is $80,000 in 2010-2014 and has grown by 43.63% since 2000. The house value growth rate is lower than the state average rate of 51.31% 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 Waltham is close to the state average in quality. The Waltham area code is 507.