Mossyrock is located in southwest Washington. Mossyrock is part of Lewis County. Mossyrock has 0.68 square miles of land area and has no water area. As of 2010-2014, the total Mossyrock population is 825, which has grown 69.75% since 2000. The population growth rate is much higher than the state average rate of 17.05% and is much higher than the national average rate of 11.61%. Mossyrock median household income is $38,043 in 2010-2014 and has grown by 27.88% since 2000. The income growth rate is lower than the state average rate of 31.72% and is about the same as the national average rate of 27.36%. Mossyrock median house value is $111,700 in 2010-2014 and has grown by 33.13% since 2000. The house value growth rate is much lower than the state average rate of 52.82% and is lower 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 Mossyrock is close to the state average in quality. The Mossyrock area code is 360.