Monroe is a city located in Butler County Ohio. With a 2020 population of 14,307, it is the 120th largest city in Ohio and the 2387th largest city in the United States . Monroe is currently growing at a rate of 1.03% annually and its population has increased by 14.99% since the most recent census, which recorded a population of 12,442 in 2010. Monroe reached it's highest population of 14,307 in 2021. Spanning over 16 miles, Monroe has a population density of 902 people per square mile.
The average household income in Monroe is $97,240 with a poverty rate of 3.30%. The median rental costs in recent years comes to $1,072 per month, and the median house value is $180,800. The median age in Monroe is 35.6 years, 34.3 years for males, and 36.8 years for females.