Kewanee is located in northwest Illinois. Kewanee is part of Henry County. Kewanee has 6.71 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Kewanee population is 12,694, which has shrunk 1.93% 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%. Kewanee median household income is $37,881 in 2010-2014 and has grown by 26.71% since 2000. The income growth rate is higher than the state average rate of 22.70% and is about the same as the national average rate of 27.36%. Kewanee median house value is $59,600 in 2010-2014 and has grown by 23.65% 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 Kewanee is worse than the state average in quality. The Kewanee area code is 309.