Poston is located in west Arizona. Poston is part of La Paz County. Poston has 1.36 square miles of land area and has no water area. As of 2010-2014, the total Poston population is 346, which has shrunk 11.05% since 2000. The population growth rate is much lower than the state average rate of 27.89% and is much lower than the national average rate of 11.61%. Poston median household income is $22,917 in 2010-2014 and has grown by 30.03% since 2000. The income growth rate is higher than the state average rate of 23.10% and is higher than the national average rate of 27.36%. Poston median house value is $9,999 in 2010-2014. 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 Poston is worse than the state average in quality. The Poston area code is 928.