61540 Zip Code
61540 zip code is located close to the center of Illinois. 61540 zip code is part of Marshall County. 61540 zip code has 52.17 square miles of land area and 6.36 square miles of water area. As of 2010-2014, the total 61540 zip code population is 2,686, which has shrunk 7.86% 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%. 61540 zip code median household income is $58,203 in 2010-2014 and has grown by 36.20% since 2000. The income growth rate is much higher than the state average rate of 22.70% and is higher than the national average rate of 27.36%. 61540 zip code median house value is $102,800 in 2010-2014 and has grown by 28.34% 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 61540 zip code is better than the state average in quality. The 61540 zip code area code is 309.