Gretna is a medium-sized city located in the state of Louisiana. With a population of 17,195 people and 17 associated neighborhoods, Gretna is the 25th largest community in Louisiana.

Gretna real estate is some of the most expensive in Louisiana, although Gretna house values don't compare to the most expensive real estate in the U.S.

Also of interest is that Gretna has more people living here who work in computers and math than 95% of the places in the US.

The population of Gretna overall has a level of education that is slightly above the US average for all US cities and towns of 21.84%. Of adults 25 and older in Gretna, 24.78% have at least a bachelor's degree.

The per capita income in Gretna in 2022 was $29,772, which is upper middle income relative to Louisiana, and middle income relative to the rest of the US. This equates to an annual income of $119,088 for a family of four. However, Gretna contains both very wealthy and poor people as well.

Gretna is an extremely ethnically-diverse city. The people who call Gretna home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Gretna residents report their race to be White, followed by Black or African-American. Gretna also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 22.48% of the city’s residents. Important ancestries of people in Gretna include French, German, Italian, Irish, and English.

Foreign born people are also an important part of Gretna's cultural character, accounting for 18.25% of the city’s population.

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