Metropolis is a city located in Massac County Illinois. It is also the county seat of Massac County. With a 2020 population of 5,723, it is the 307th largest city in Illinois and the 4405th largest city in the United States . Metropolis is currently declining at a rate of -1.90% annually and its population has decreased by -12.45% since the most recent census, which recorded a population of 6,537 in 2010. Metropolis reached it's highest population of 7,339 in 1960. Spanning over 6 miles, Metropolis has a population density of 964 people per square mile.
The average household income in Metropolis is $45,963 with a poverty rate of 24.40%. The median rental costs in recent years comes to $667 per month, and the median house value is $73,800. The median age in Metropolis is 43.7 years, 43.3 years for males, and 46.5 years for females.