Keystone is located in east Iowa. Keystone is part of Benton County. Keystone has 0.45 square miles of land area and has no water area. As of 2010, the total Keystone population is 622, which has shrunk 9.46% since 2000. The population growth rate is much lower than the state average rate of 4.10% and is much lower than the national average rate of 9.71%. Keystone median household income is $55,156 in 2006-2010 and has grown by 51.29% since 2000. The income growth rate is much higher than the state average rate of 21.52% and is much higher than the national average rate of 19.17%. Keystone median house value is $87,500 in 2006-2010 and has grown by 26.63% since 2000. The house value growth rate is much lower than the state average rate of 49.58% and is much lower than the national average rate of 50.42%. 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 Keystone is much better than the state average in quality. The Keystone area code is 319.
Keystone, IA Map, Border, and Nearby Locations
* Based on the U.S. 2010 Data