Mermentau, LA Demographics

A map of Mermentau's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	522	404	83.3%	78.3%
Black	74	72	11.8%	14.0%
Multiracial	21	30	3.3%	5.8%
Hispanic	10	8	1.6%	1.6%
Asian	0	0	0.0%	0.0%
Native American/Other	0	2	0.0%	0.4%

Mermentau, Louisiana has an estimated population of 627, a large increase from the 516 recorded in the 2020 Census. The population is 83.3% White, 11.8% Black, 3.3% Multiracial, 1.6% Hispanic, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Mermentau, with one dot drawn for each person counted by the Census, color-coded by race.

Mermentau has become considerably less racially diverse since the 2020 Census. It is considerably less 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 Mermentau, that probability was 36.4% in 2020 and 29.2% in the most recent ACS estimates.

Mermentau is ranked the 325th 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). Mermentau was ranked the 352nd most populous place in the 2020 Census.

Mermentau's White Population

522 residents of Mermentau, or 83.3% of the population, identify as White. The share of White residents in Mermentau is significantly higher than in Louisiana overall, where 55.7% of the population is White. Mermentau ranks 140th statewide in terms of White residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's White population has grown by an estimated 29.2%. White residents' share of Mermentau's population has increased from 78.3% to 83.3%.

Mermentau is more White than neighboring Jennings (63.4% White). Mermentau is less White than neighboring Midland (100% White), Egan (93.3% White), Morse (95.1% White), and Estherwood (94.7% White).

Mermentau's Black Population

74 residents of Mermentau, or 11.8% of the population, identify as Black. The share of Black residents in Mermentau is significantly lower than in Louisiana overall, where 30.5% of the population is Black. Mermentau ranks 309th statewide in terms of Black residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's Black population has grown by an estimated 2.8%. Black residents' share of Mermentau's population has decreased from 14.0% to 11.8%.

Mermentau is more Black than neighboring Midland (0% Black), Egan (6.1% Black), Morse (0.5% Black), and Estherwood (0.8% Black). Mermentau is less Black than neighboring Jennings (24.4% Black).

Mermentau's Asian Population

0 residents of Mermentau, or 0.0% of the population, identify as Asian. The share of Asian residents in Mermentau is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Mermentau ranks 333rd statewide in terms of Asian residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's Asian population has grown from 0 to an estimated 0. Asian residents' share of Mermentau's population has remained roughly unchanged at 0.0%.

Mermentau is less Asian than neighboring Jennings (0.5% Asian).

Mermentau's Hispanic Population

10 residents of Mermentau, or 1.6% of the population, identify as Hispanic. The share of Hispanic residents in Mermentau is lower than in Louisiana overall, where 7.2% of the population is Hispanic. Mermentau ranks 389th statewide in terms of Hispanic residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's Hispanic population has grown by an estimated 25.0%. Hispanic residents' share of Mermentau's population has remained roughly unchanged at 1.6%.

Mermentau is more Hispanic than neighboring Midland (0% Hispanic), Egan (0% Hispanic), and Morse (1.2% Hispanic). Mermentau is less Hispanic than neighboring Jennings (5.2% Hispanic), and Estherwood (2.3% Hispanic).

Mermentau's Native American/Other Population

0 residents of Mermentau, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mermentau is comparable to the share in Louisiana overall, where 1% of the population is Native American/Other. Mermentau ranks 356th statewide in terms of Native American/Other residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Mermentau's population has remained roughly unchanged at 0.0%.

Mermentau is less Native American/Other than neighboring Jennings (0.4% Native American/Other), Egan (0.6% Native American/Other), and Morse (2.3% Native American/Other).

Mermentau's Multiracial Population

21 residents of Mermentau, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in Mermentau is comparable to the share in Louisiana overall, where 3.8% of the population is Multiracial. Mermentau ranks 46th statewide in terms of Multiracial residents as a share of the population, out of 489 places.

Since the 2020 Census, Mermentau's Multiracial population has declined by an estimated 30.0%. Multiracial residents' share of Mermentau's population has decreased from 5.8% to 3.3%.

Mermentau is more Multiracial than neighboring Midland (0% Multiracial), Egan (0% Multiracial), Morse (1% Multiracial), and Estherwood (2.3% Multiracial). Mermentau is less Multiracial than neighboring Jennings (6.2% 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.