Omaha is located in south Illinois. Omaha is between the Gallatin, White county. Omaha has 0.82 square miles of land area and 0.00 square miles of water area. As of 2010-2014, the total Omaha population is 249, which has shrunk 5.32% 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%. Omaha median household income is $40,139 in 2010-2014 and has grown by 69.01% 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%. Omaha median house value is $45,000 in 2010-2014 and has grown by 37.61% since 2000. The house value growth rate is higher than the state average rate of 34.33% and is 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 Omaha is worse than the state average in quality. The Omaha area code is 618.