Greycliff is located close to the center of Montana. Greycliff is part of Sweet Grass County. Greycliff has 0.51 square miles of land area and has no water area. As of 2010-2014, the total Greycliff population is 63, which has grown 12.50% since 2000. The population growth rate is higher than the state average rate of 11.55% and is higher than the national average rate of 11.61%. Greycliff median household income is $31,875 in 2010-2014 and has has shrunk by 17.74% since 2000. The income growth rate is much lower than the state average rate of 41.61% and is much lower than the national average rate of 27.36%. Greycliff median house value is $155,000 in 2010-2014 and has shrunk by -158.33% since 2000. The house value growth rate is much higher than the state average rate of 88.54% 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 Greycliff is better than the state average in quality. The Greycliff area code is 406.