Monroe is a city located in Monroe County Michigan. It is also the county seat of Monroe County. With a 2020 population of 19,296, it is the 55th largest city in Michigan and the 1915th largest city in the United States . Monroe is currently declining at a rate of -0.66% annually and its population has decreased by -6.93% since the most recent census, which recorded a population of 20,733 in 2010. Monroe reached it's highest population of 23,894 in 1970. Spanning over 10 miles, Monroe has a population density of 2,133 people per square mile.
The average household income in Monroe is $59,051 with a poverty rate of 19.54%. The median rental costs in recent years comes to $741 per month, and the median house value is $122,300. The median age in Monroe is 37.6 years, 37.6 years for males, and 37.6 years for females.