Shelby is located in northwest Montana. Shelby is part of Toole County. Shelby has 6.03 square miles of land area and 0.15 square miles of water area. As of 2010-2014, the total Shelby population is 3,096, which has shrunk 3.73% since 2000. The population growth rate is much lower than the state average rate of 11.55% and is much lower than the national average rate of 11.61%. Shelby median household income is $44,464 in 2010-2014 and has grown by 52.17% since 2000. The income growth rate is higher than the state average rate of 41.61% and is much higher than the national average rate of 27.36%. Shelby median house value is $111,200 in 2010-2014 and has grown by 69.51% since 2000. The house value growth rate is lower than the state average rate of 88.54% 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 Shelby is worse than the state average in quality. The Shelby area code is 406.