Anna is located in south Illinois. Anna is part of Union County. Anna has 3.50 square miles of land area and 0.02 square miles of water area. As of 2010-2014, the total Anna population is 4,385, which has shrunk 14.62% 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%. Anna median household income is $38,258 in 2010-2014 and has grown by 55.12% 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%. Anna median house value is $71,200 in 2010-2014 and has grown by 24.26% 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 Anna is worse than the state average in quality. The Anna area code is 618.