Keizer is located in northwest Oregon. Keizer is part of Marion County. Keizer has 7.09 square miles of land area and 0.12 square miles of water area. As of 2010-2014, the total Keizer population is 36,875, which has grown 14.51% since 2000. The population growth rate is higher than the state average rate of 14.00% and is higher than the national average rate of 11.61%. Keizer median household income is $50,897 in 2010-2014 and has grown by 12.97% since 2000. The income growth rate is much lower than the state average rate of 23.47% and is much lower than the national average rate of 27.36%. Keizer median house value is $195,300 in 2010-2014 and has grown by 41.93% since 2000. The house value growth rate is lower than the state average rate of 53.91% 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 Keizer is close to the state average in quality. The Keizer area code is 503.