Opelousas is a city located in St. Landry Parish Louisiana. With a 2020 population of 15,547, it is the 21st largest city in Louisiana and the 2266th largest city in the United States . Opelousas is currently declining at a rate of -1.16% annually and its population has decreased by -6.53% 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 1,962 people per square mile.
The average household income in Opelousas is $41,147 with a poverty rate of 43.28%. The median rental costs in recent years comes to $633 per month, and the median house value is $98,100. The median age in Opelousas is 35.9 years, 32.7 years for males, and 39 years for females.