Marrero is a medium-sized town located in the state of Louisiana. With a population of 32,382 people and 15 associated neighborhoods, Marrero is the 13th largest community in Louisiana.

The percentage of people in Marrero with college degrees is quite a bit lower than the national average for cities and towns of 21.84%: just 12.24% of people over 25 have a bachelor's degree or advanced degree.

The per capita income in Marrero in 2022 was $24,632, which is lower middle income relative to Louisiana, and low income relative to the rest of the US. This equates to an annual income of $98,528 for a family of four. However, Marrero contains both very wealthy and poor people as well.

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

The most common language spoken in Marrero is English. Other important languages spoken here include Vietnamese and Spanish.