Plaquemine is a somewhat small city located in the state of Louisiana. With a population of 5,985 people and four associated neighborhoods, Plaquemine is the 76th largest community in Louisiana.

Plaquemine is a small city, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

The education level of Plaquemine citizens, measured as those with bachelor's degrees or advanced degrees, is similar to the national average for all American cities and towns. 17.16% of adults 25 and older in Plaquemine have a college degree.

The per capita income in Plaquemine in 2022 was $31,360, which is upper middle income relative to Louisiana, and lower middle income relative to the rest of the US. This equates to an annual income of $125,440 for a family of four. However, Plaquemine contains both very wealthy and poor people as well.

Plaquemine is an extremely ethnically-diverse city. The people who call Plaquemine home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Plaquemine residents report their race to be Black or African-American, followed by White. Important ancestries of people in Plaquemine include French, Irish, German, Italian, and African.

The most common language spoken in Plaquemine is English. Other important languages spoken here include Italian and Polish.