Anna is a city located in Union County Illinois. With a 2020 population of 4,006, it is the 368th largest city in Illinois and the 5412th largest city in the United States . Anna is currently declining at a rate of -1.16% annually and its population has decreased by -9.82% since the most recent census, which recorded a population of 4,442 in 2010. Anna reached it's highest population of 5,408 in 1980. Spanning over 4 miles, Anna has a population density of 1,127 people per square mile.
The average household income in Anna is $53,639 with a poverty rate of 26.92%. The median rental costs in recent years comes to $604 per month, and the median house value is $87,900. The median age in Anna is 43.2 years, 38.7 years for males, and 52.3 years for females.