Plaquemines County Demographics

A map of Plaquemines County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	13,419	13,764	58.8%	58.5%
Black	4,650	4,863	20.4%	20.7%
Hispanic	2,227	2,236	9.8%	9.5%
Multiracial	1,423	1,124	6.2%	4.8%
Asian	797	1,042	3.5%	4.4%
Native American/Other	287	486	1.3%	2.1%

Plaquemines County, Louisiana has an estimated population of 22,803, a decrease from the 23,515 recorded in the 2020 Census. The population is 58.8% White, 20.4% Black, 9.8% Hispanic, 6.2% Multiracial, 3.5% Asian, and 1.3% Native American/Other. This demographic dot map shows the population of Plaquemines County, with one dot drawn for each person counted by the Census, color-coded by race.

Plaquemines is about as racially diverse as it was in the 2020 Census. It is slightly 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 Plaquemines County, that probability was 60.1% in 2020 and 59.7% in the most recent ACS estimates.

Plaquemines County is ranked the 38th most populous county in Louisiana, out of 64 counties. Plaquemines County was ranked the 38th most populous county in the 2020 Census.

Plaquemines County's White Population

13,419 residents of Plaquemines County, or 58.8% of the population, identify as White. The share of White residents in Plaquemines County is slightly higher than in Louisiana overall, where 55.7% of the population is White. Plaquemines County ranks 37th statewide in terms of White residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's White population has declined by an estimated 2.5%. White residents' share of Plaquemines County's population has remained roughly unchanged at 58.8%.

Plaquemines County is more White than neighboring St. Bernard County (55.5% White), Jefferson County (47.2% White), and Orleans County (30.1% White). Plaquemines County is less White than neighboring Lafourche County (74.2% White), and Hancock County (83.4% White).

Plaquemines County's Black Population

4,650 residents of Plaquemines County, or 20.4% of the population, identify as Black. The share of Black residents in Plaquemines County is considerably lower than in Louisiana overall, where 30.5% of the population is Black. Plaquemines County ranks 48th statewide in terms of Black residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's Black population has declined by an estimated 4.4%. Black residents' share of Plaquemines County's population has remained roughly unchanged at 20.4%.

Plaquemines County is more Black than neighboring Lafourche County (12.8% Black), and Hancock County (7.1% Black). Plaquemines County is less Black than neighboring St. Bernard County (23.6% Black), Jefferson County (25.1% Black), and Orleans County (53.9% Black).

Plaquemines County's Asian Population

797 residents of Plaquemines County, or 3.5% of the population, identify as Asian. The share of Asian residents in Plaquemines County is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Plaquemines County ranks 1st statewide in terms of Asian residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's Asian population has declined by an estimated 23.5%. Asian residents' share of Plaquemines County's population has decreased from 4.4% to 3.5%.

Plaquemines County is more Asian than neighboring St. Bernard County (1.9% Asian), Orleans County (2.8% Asian), Lafourche County (0.6% Asian), and Hancock County (1% Asian). Plaquemines County is less Asian than neighboring Jefferson County (4.2% Asian).

Plaquemines County's Hispanic Population

2,227 residents of Plaquemines County, or 9.8% of the population, identify as Hispanic. The share of Hispanic residents in Plaquemines County is slightly higher than in Louisiana overall, where 7.2% of the population is Hispanic. Plaquemines County ranks 3rd statewide in terms of Hispanic residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's Hispanic population has remained roughly the same. Hispanic residents' share of Plaquemines County's population has remained roughly unchanged at 9.8%.

Plaquemines County is more Hispanic than neighboring Orleans County (8.2% Hispanic), Lafourche County (5.9% Hispanic), and Hancock County (4.2% Hispanic). Plaquemines County is less Hispanic than neighboring St. Bernard County (13.9% Hispanic), and Jefferson County (18.9% Hispanic).

Plaquemines County's Native American/Other Population

287 residents of Plaquemines County, or 1.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Plaquemines County is comparable to the share in Louisiana overall, where 1% of the population is Native American/Other. Plaquemines County ranks 7th statewide in terms of Native American/Other residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's Native American/Other population has declined by an estimated 40.9%. Native American/Other residents' share of Plaquemines County's population has decreased from 2.1% to 1.3%.

Plaquemines County is more Native American/Other than neighboring St. Bernard County (0.9% Native American/Other), Jefferson County (0.9% Native American/Other), Orleans County (1.1% Native American/Other), and Hancock County (1% Native American/Other). Plaquemines County is less Native American/Other than neighboring Lafourche County (2.6% Native American/Other).

Plaquemines County's Multiracial Population

1,423 residents of Plaquemines County, or 6.2% of the population, identify as Multiracial. The share of Multiracial residents in Plaquemines County is slightly higher than in Louisiana overall, where 3.8% of the population is Multiracial. Plaquemines County ranks 3rd statewide in terms of Multiracial residents as a share of the population, out of 64 counties.

Since the 2020 Census, Plaquemines County's Multiracial population has grown by an estimated 26.6%. Multiracial residents' share of Plaquemines County's population has increased from 4.8% to 6.2%.

Plaquemines County is more Multiracial than neighboring St. Bernard County (4.2% Multiracial), Jefferson County (3.7% Multiracial), Orleans County (4% Multiracial), Lafourche County (4% Multiracial), and Hancock County (3.3% 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.