Keithsburg is located in northwest Illinois. Keithsburg is between the Mercer, Henderson county. Keithsburg has 2.56 square miles of land area and 0.62 square miles of water area. As of 2010-2014, the total Keithsburg population is 598, which has shrunk 16.25% since 2000. The population growth rate is much lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Keithsburg median household income is $32,500 in 2010-2014 and has has shrunk by 0.00% since 2000. The income growth rate is lower than the state average rate of 22.70% and is lower than the national average rate of 27.36%. Keithsburg median house value is $51,900 in 2010-2014 and has shrunk by -26.28% since 2000. The house value growth rate is lower than the state average rate of 34.33% and is much 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 Keithsburg is close to the state average in quality. The Keithsburg area code is 309.