Avondale is located in northwest Missouri. Avondale is part of Clay County. Avondale has 0.14 square miles of land area and has no water area. As of 2010-2014, the total Avondale population is 493, which has shrunk 6.81% since 2000. The population growth rate is much lower than the state average rate of 7.74% and is much lower than the national average rate of 11.61%. Avondale median household income is $47,045 in 2010-2014 and has grown by 26.60% since 2000. The income growth rate is about the same as the state average rate of 25.91% and is about the same as the national average rate of 27.36%. Avondale median house value is $100,000 in 2010-2014 and has grown by 35.32% since 2000. The house value growth rate is lower than the state average rate of 52.06% 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 Avondale is better than the state average in quality.