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CITY

Mermentau

Louisiana · 490 residents (2025 est.) · 2.132 sq mi
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The short version

Mermentau is significantly wealthier than the US average, with a median household income of $117,764. Population has declined 13% since 2000. Median home value has risen by half since 2000, reaching $55,300. With a median age of 64.0, the population is older than the US median of 38.9. The poverty rate of 20.4% is well above the national figure. It ranks in the top 5% of US cities for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 64.0
US median: 38.9
Average education
37% hold a bachelor's degree
US average: 36%
More affordable
home values down 13%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
627
−13%since 2000
from 721 in 2000
1990 – 2025
Population density
294 / sq mi
−13%since 2000
from 338 / sq mi in 2000
US average: 281
Median age
64.0
+83%since 2000
from 34.9 in 2000
US average: 38.9

PEP 2025 EST:490 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
4865766667558451990201020202024Mermentau
2024627
1990201020202024
Section 02

Income & economy

Median household income
$117,764
+141%inflation adjusted, since 2000
from $26,786 in 2000
US average: $82,259
1990 – 2024
Per capita income
$24,407
+114%since 2000
from $11,408 in 2000
US average: $44,673
Households earning $100K+
60.9%
+47.5 ptssince 2009
from 13.4% in 2009
US average: 53.3%
Poverty rate
20.4%
−6.0 ptssince 2000
from 26.4% in 2000
US average: 12.5%
Income inequality (Gini)
0.287
−28%since 2010
from 0.401 in 2010
US average: 0.476
Workforce by industry, 2024
Information31.4%
US avg: 10.8%
Wholesale trade7.6%
US avg: 6.9%
Finance & insurance5.1%
US avg: 5.9%
Professional, scientific, technical5.1%
US avg: 5.1%
Other services5.1%
US avg: 6.7%
Public administration5.1%
US avg: 4.8%
Agriculture, forestry, fishing2.5%
US avg: 1.6%
Manufacturing2.5%
US avg: 0.4%
Construction0%
US avg: 1.2%
Retail trade0%
US avg: 9.9%
Transportation & warehousing0%
US avg: 2.2%
Education & health services0%
US avg: 0.9%
Arts, entertainment, food0%
US avg: 1.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$55,300
−13%inflation adjusted, since 2000
from $35,000 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$478
−3%inflation adjusted, since 2000
from $270 in 2000
US average: $1,442
Owner-occupied
86.1%
+13.2 ptssince 2000
from 72.9% in 2000
13.9% rent
Vacancy rate
9.7%
−9.9 ptssince 2009
from 19.6% in 2009
US average: 10.0%
Owner cost-burdened
9.9%
+2.7 ptssince 2009
from 7.2% in 2009
US average: 22.9%
Renter cost-burdened
65.9%
+24.1 ptssince 2009
from 41.8% in 2009
US average: 47.4%
Afford Score
0.5
−64%since 2000
from 1.3 in 2000
1990 – 2024
Gentrification Score
69
RELATED:See current rent listings in Mermentau on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic84.5%(609)
Black12.5%(90)
Hispanic / Latino2.1%(15)
Asian0%(0)
Other0%
Diversity Score32%(231)
2024
White, non-Hispanic83.3%(522)
Black11.8%(74)
Hispanic / Latino1.6%(10)
Asian0%(0)
Other3.3%(21)
Diversity Score36.4%(229)
Diversity Score
36
+14%since 2000
from 32 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
37.0%
+33.7 ptssince 2000
from 3.4% in 2000
US average: 35.6%
High school or higher
83.8%
+21.1 ptssince 2000
from 62.6% in 2000
US average: 89.6%
Graduate degree
1.4%
+0.9 ptssince 2000
from 0.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
18.6 min
−25%since 2000
from 24.7 min in 2000
US average: 26.5
Drive alone to work
100.0%
+17.3 ptssince 2009
from 82.7% in 2009
US average: 68.9%
Carpooled to work
0.0%
−15.5 ptssince 2009
from 15.5% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 15.0%
Walked to work
0.0%
−1.8 ptssince 2009
from 1.8% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
5.7%
+2.8 ptssince 2009
from 2.8% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
16.3%
+11.8 ptssince 2011
from 4.5% in 2011
US average: 5.2%
Labor force participation
25.9%
−24.1 ptssince 2011
from 50.0% in 2011
US average: 63.5%
Self-employed
0.0%
−15.7 ptssince 2009
from 15.7% in 2009
US average: 13.1%
Management & professional
7.6%
−51.4 ptssince 2009
from 59.0% in 2009
US average: 42.5%
Section 08

People & community

Male
36.2%
−24.0 ptssince 2009
from 60.2% in 2009
Female
63.8%
+24.0 ptssince 2009
from 39.8% in 2009
Foreign born
0.0%
−0.6 ptssince 2009
from 0.6% in 2009
US average: 14.1%
Veterans
4.1%
−49.9 ptssince 2009
from 54.0% in 2009
US average: 6.2%
With a disability
14.7%
−10.2 ptssince 2012
from 24.9% in 2012
US average: 13.3%
Uninsured
0.3%
−89.2 ptssince 2013
from 89.5% in 2013
US average: 8.4%
Broadband at home
38.5%
−12.9 ptssince 2017
from 51.4% in 2017
US average: 91.0%
English only at home
97.0%
+7.3 ptssince 2016
from 89.6% in 2016
US average: 77.7%
Spanish at home
0.0%
Unchangedsince 2016
from 0.0% in 2016
US average: 13.6%
Drill deeper

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Compare Mermentau to nearby cities

MERMENTAU VS
Jennings
Income$48,558−59%
Home value$136,700+147%
Population9,235+1785%
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MERMENTAU VS
Crowley
Income$28,642−76%
Home value$144,900+162%
Population11,223+2190%
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MERMENTAU VS
Eunice
Income$35,436−70%
Home value$122,000+121%
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MERMENTAU VS
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Income$56,299−52%
Home value$170,300+208%
Population9,635+1866%
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Frequently asked

How many people live in Mermentau, Louisiana?

Mermentau, Louisiana has about 627 residents according to the 2024 American Community Survey.

What is the median household income in Mermentau, Louisiana?

The typical household in Mermentau, Louisiana earns about $117,764 a year. Half of households make more than that, and half make less.

Is Mermentau, Louisiana expensive?

In Mermentau, Louisiana, the median home is worth about $55,300, and the typical rent is about $478 a month.

How educated are people in Mermentau, Louisiana?

About 37.0% of adults age 25 and over in Mermentau, Louisiana hold a bachelor's degree or higher.

What is the poverty rate in Mermentau, Louisiana?

About 20.4% of people in Mermentau, Louisiana live below the federal poverty line.

Has Mermentau, Louisiana grown since 1990?

Yes, Mermentau, Louisiana has shrunk since 1990. The population has lost about 147 residents, a change of about -19 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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