Mermentau

County:: Acadia Parish
County Seat:: No
Area (mi²):: 2.132
State:: Louisiana

Mermentau is a village located in Acadia Parish, Louisiana. Mermentau has a 2025 population of 483. Mermentau is currently declining at a rate of -1.43% annually and its population has decreased by -6.58% since the most recent census, which recorded a population of 517 in 2020.

The average household income in Mermentau is $83,657 with a poverty rate of 18.42%. The median age in Mermentau is 68.6 years: 56.9 years for males, and 72.2 years for females.

Demographics

The racial composition of Mermentau includes 83.86% White, 10.88% Black or African American, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	478	83.86%
Black or African American	62	10.88%
Two or more races	30	5.26%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Mermentau Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mermentau's average per capita income is $32,256. Household income levels show a median of $112,864. The poverty rate stands at 18.42%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$113,636	-
Families	$113,311	$95,589
Households	$112,864	$83,657
Non Families	$36,250	$31,676

$32,256

Average Income

$112,864

Median Household Income

18.42%

Poverty Rate