Port Allen is a city located in Louisiana. With a 2020 population of 4,870, it is the 63rd largest city in Louisiana and the 4825th largest city in the United States. Port Allen is currently declining at a rate of -1.00% annually and its population has decreased by -5.98% since the most recent census, which recorded a population of 5,180 in 2010. Port Allen reached it's highest population of 6,277 in 1990. Spanning over 3 miles, Port Allen has a population density of 1,718 people per square mile.
The average household income in Port Allen is $67,190 with a poverty rate of 20.13%. The median rental costs in recent years comes to $864 per month, and the median house value is $119,500. The median age in Port Allen is 44.8 years, 40.3 years for males, and 45.6 years for females. For every 100 females there are 71.1 males.