Thayer is located in east Kansas. Thayer is between the Neosho, Labette, Montgomery, Wilson county. Thayer has 0.75 square miles of land area and 0.05 square miles of water area. As of 2010-2014, the total Thayer population is 549, which has grown 9.80% since 2000. The population growth rate is higher than the state average rate of 7.24% and is lower than the national average rate of 11.61%. Thayer median household income is $37,857 in 2010-2014 and has grown by 7.28% since 2000. The income growth rate is much lower than the state average rate of 27.69% and is much lower than the national average rate of 27.36%. Thayer median house value is $57,000 in 2010-2014 and has grown by 41.09% since 2000. The house value growth rate is lower than the state average rate of 54.97% 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 Thayer is much better than the state average in quality. The Thayer area code is 620.