Opelousas is a city located in Louisiana. With a 2020 population of 15,876, it is the 20th largest city in Louisiana and the 2229th largest city in the United States. Opelousas is currently declining at a rate of -0.78% annually and its population has decreased by -4.56% since the most recent census, which recorded a population of 16,634 in 2010. Opelousas reached it's highest population of 22,860 in 2000. Spanning over 8 miles, Opelousas has a population density of 2,003 people per square mile.
The average household income in Opelousas is $39,375 with a poverty rate of 45.20%. The median rental costs in recent years comes to $588 per month, and the median house value is $94,100. The median age in Opelousas is 35.8 years, 35.2 years for males, and 37 years for females. For every 100 females there are 83.1 males.