Mamou is a city located in Louisiana. With a 2020 population of 3,139, it is the 92nd largest city in Louisiana and the 6113th largest city in the United States. Mamou is currently declining at a rate of -0.38% annually and its population has decreased by -3.18% since the most recent census, which recorded a population of 3,242 in 2010. Mamou reached it's highest population of 3,566 in 2000. Spanning over 1 miles, Mamou has a population density of 2,227 people per square mile.
The average household income in Mamou is $35,675 with a poverty rate of 41.15%. The median rental costs in recent years comes to $503 per month, and the median house value is $85,000. The median age in Mamou is 32.4 years, 21.7 years for males, and 33.8 years for females. For every 100 females there are 101.3 males.