Martin county is located in south Minnesota. Martin county has 712.35 square miles of land area and 17.23 square miles of water area. As of 2010-2014, the total Martin county population is 20,515, which has shrunk 5.90% 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%. Martin county median household income is $52,579 in 2010-2014 and has grown by 51.05% 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%. Martin county median house value is $103,900 in 2010-2014 and has grown by 67.04% since 2000. The house value growth rate is higher than the state average rate of 51.31% 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 Martin county is better than the state average in quality. The Martin county area code is 507.
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