61439 Zip Code
61439 zip code is located in northwest Illinois. 61439 zip code is part of Knox County. 61439 zip code has 0.68 square miles of land area and has no water area. As of 2010-2014, the total 61439 zip code population is 223, which has shrunk 20.92% 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%. 61439 zip code median household income is $48,542 in 2010-2014 and has grown by 42.65% since 2000. The income growth rate is much higher than the state average rate of 22.70% and is much higher than the national average rate of 27.36%. 61439 zip code median house value is $69,800 in 2010-2014 and has grown by 23.76% 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 61439 zip code is close to the state average in quality. The 61439 zip code area code is 309.