Greenfield is located in west Tennessee. Greenfield is part of Weakley County. Greenfield has 3.68 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Greenfield population is 2,222, which has grown 0.63% since 2000. The population growth rate is much lower than the state average rate of 13.40% and is much lower than the national average rate of 11.61%. Greenfield median household income is $32,558 in 2010-2014 and has grown by 23.42% since 2000. The income growth rate is about the same as the state average rate of 22.72% and is lower than the national average rate of 27.36%. Greenfield median house value is $81,000 in 2010-2014 and has grown by 62.65% since 2000. The house value growth rate is higher than the state average rate of 50.43% 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 Greenfield is much better than the state average in quality. The Greenfield area code is 731.