Gretna, LA Demographics

A map of Gretna's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	6,606	7,347	38.0%	41.2%
Black	5,212	5,872	30.0%	33.0%
Hispanic	4,256	3,336	24.5%	18.7%
Asian	641	490	3.7%	2.8%
Multiracial	492	560	2.8%	3.1%
Native American/Other	182	209	1.0%	1.2%

Gretna, Louisiana has an estimated population of 17,389, a slight decrease from the 17,814 recorded in the 2020 Census. The population is 38.0% White, 30.0% Black, 24.5% Hispanic, 3.7% Asian, 2.8% Multiracial, and 1.0% Native American/Other. This demographic dot map shows the population of Gretna, with one dot drawn for each person counted by the Census, color-coded by race.

Gretna has become more racially diverse since the 2020 Census. It is considerably more diverse than Louisiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Gretna, that probability was 68.4% in 2020 and 70.4% in the most recent ACS estimates.

Gretna is ranked the 29th most populous place in Louisiana, out of 489 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Gretna was ranked the 29th most populous place in the 2020 Census.

Gretna's White Population

6,606 residents of Gretna, or 38.0% of the population, identify as White. The share of White residents in Gretna is significantly lower than in Louisiana overall, where 55.7% of the population is White. Gretna ranks 372nd statewide in terms of White residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's White population has declined by an estimated 10.1%. White residents' share of Gretna's population has decreased from 41.2% to 38.0%.

Gretna is more White than neighboring Terrytown (22.6% White), Harvey (25.8% White), Timberlane (25.5% White), Woodmere (3.4% White), and Marrero (30.2% White).

Gretna's Black Population

5,212 residents of Gretna, or 30.0% of the population, identify as Black. The share of Black residents in Gretna is comparable to the share in Louisiana overall, where 30.5% of the population is Black. Gretna ranks 199th statewide in terms of Black residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's Black population has declined by an estimated 11.2%. Black residents' share of Gretna's population has decreased from 33.0% to 30.0%.

Gretna is less Black than neighboring Terrytown (35.4% Black), Harvey (43.6% Black), Timberlane (43.8% Black), Woodmere (80.5% Black), and Marrero (47.9% Black).

Gretna's Asian Population

641 residents of Gretna, or 3.7% of the population, identify as Asian. The share of Asian residents in Gretna is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Gretna ranks 46th statewide in terms of Asian residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's Asian population has grown by an estimated 30.8%. Asian residents' share of Gretna's population has increased from 2.8% to 3.7%.

Gretna is less Asian than neighboring Terrytown (4.1% Asian), Harvey (8% Asian), Timberlane (8.9% Asian), Woodmere (4.2% Asian), and Marrero (5% Asian).

Gretna's Hispanic Population

4,256 residents of Gretna, or 24.5% of the population, identify as Hispanic. The share of Hispanic residents in Gretna is significantly higher than in Louisiana overall, where 7.2% of the population is Hispanic. Gretna ranks 14th statewide in terms of Hispanic residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's Hispanic population has grown by an estimated 27.6%. Hispanic residents' share of Gretna's population has increased from 18.7% to 24.5%.

Gretna is more Hispanic than neighboring Harvey (20.1% Hispanic), Timberlane (17.3% Hispanic), Woodmere (9.1% Hispanic), and Marrero (9.8% Hispanic). Gretna is less Hispanic than neighboring Terrytown (35.7% Hispanic).

Gretna's Native American/Other Population

182 residents of Gretna, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Gretna is comparable to the share in Louisiana overall, where 1% of the population is Native American/Other. Gretna ranks 116th statewide in terms of Native American/Other residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's Native American/Other population has declined by an estimated 12.9%. Native American/Other residents' share of Gretna's population has remained roughly unchanged at 1.0%.

Gretna is more Native American/Other than neighboring Terrytown (0.6% Native American/Other), and Harvey (0.1% Native American/Other). Gretna is less Native American/Other than neighboring Timberlane (1.5% Native American/Other), and Woodmere (1.8% Native American/Other).

Gretna's Multiracial Population

492 residents of Gretna, or 2.8% of the population, identify as Multiracial. The share of Multiracial residents in Gretna is comparable to the share in Louisiana overall, where 3.8% of the population is Multiracial. Gretna ranks 274th statewide in terms of Multiracial residents as a share of the population, out of 489 places.

Since the 2020 Census, Gretna's Multiracial population has declined by an estimated 12.1%. Multiracial residents' share of Gretna's population has remained roughly unchanged at 2.8%.

Gretna is more Multiracial than neighboring Terrytown (1.6% Multiracial), Harvey (2.4% Multiracial), and Woodmere (1% Multiracial). Gretna is less Multiracial than neighboring Timberlane (3% Multiracial), and Marrero (6.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.