Each edition grades its towns against each other only.
Mermentau’s median age is 64 years, above both the Louisiana town median (37.8 years) and the median of U.S. towns (40.5 years). Of the 160 Louisiana towns we compare, none has a lower median rent than Mermentau. Mermentau has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Mermentau beats most towns.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 323 in 1910, a peak of 771 in 1980, 516 in 2020. The archive holds 1 old photo or paper going back to 2004 and 4 maps from 1946 on.
Who provides power, water and the rest in Mermentau, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.
Ordered by what stands out in Mermentau.
People 65 and older are 50% of residents (17% statewide); adults 35 to 64 are 24% of residents (37% statewide). 15% of residents are under 18 in Mermentau, where Louisiana’s towns sit at 24% and U.S. towns at 22%. 37% of adults 25 and older hold a bachelor’s degree or more in Mermentau.
| Mermentau | Louisiana towns | U.S. towns | |
|---|---|---|---|
| Under 18 | 15% | 24% | 22% |
| Bachelor’s degree or more, 25+ | 37% | 20% | 29% |
Somewhere between 48% and 80% women
The Census survey reached too few of Mermentau’s residents to say more: its margin here is ±16.3 points. Across Louisiana, 51.1% of residents are women.
| Mermentau | LA | U.S. | |
|---|---|---|---|
| Under 10 | 5.9% | 12.6% | 11.6% |
| 10 to 17 | 8.9% | 10.9% | 10.3% |
| 18 to 24 | 4.6% | 9.1% | 9.1% |
| 25 to 34 | 7.3% | 13.3% | 13.7% |
| 35 to 44 | 5.3% | 13.3% | 13.2% |
| 45 to 54 | 11% | 11.5% | 12.2% |
| 55 to 64 | 7.3% | 12.6% | 12.7% |
| 65 to 74 | 42.1% | 10.2% | 10.2% |
| 75 and older | 7.5% | 6.5% | 7% |
| No diploma | 16.2% | 12.7% | 10.4% |
| High school | 25.3% | 32.5% | 26% |
| Some college | 14.3% | 20.4% | 19.1% |
| Associate’s | 7.1% | 7.3% | 8.8% |
| Bachelor’s | 35.6% | 17% | 21.6% |
| Graduate | 1.4% | 10.1% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 500, single groups can be off by several points
Its public schools are run by the Acadia Parish school district. Its one school is below.
| School | Level | Students | Letter |
|---|---|---|---|
| Mermentau Elementary SchoolLargest public elementary schoolGrades PK–7 | Grades PK–7 | 142 | A+ |
NCES · EDFacts
Expected storm and flood damage is higher than in 92% of U.S. communities. Since 1994, 11 flood insurance claims have been paid out in Mermentau.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
Most working residents leave Mermentau for work: only 2% work in town. The average trip to work in Mermentau is 19 minutes. Jobs based in Mermentau fell to 105 in 2023, 82 fewer than in 2013.
| Mermentau | Louisiana towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 19 minutes | 25 minutes | 25 minutes |
| Below the poverty line | 20% | 20% | 9.6% |
| Working residents who work in town | 1.7% | 9.8% | 8% |
Census LEHD 2023 · ACS
Mermentau has warm winters and warm summers, with plenty of rain. Mermentau’s July high is 92°F.
NOAA U.S. Climate Normals, 1991–2020
Mermentau beats the Louisiana average on 1 of 32 CDC measures and trails it on 10. 48% of Mermentau adults have high blood pressure.
| Mermentau | Louisiana towns | U.S. towns | |
|---|---|---|---|
| High blood pressure (CDC PLACES) | 48% | 44% | 35% |
| Frequent physical distress (CDC PLACES) | 19% | 16% | 14% |
| Diabetes (CDC PLACES) | 18% | 16% | 12% |
| Depression (CDC PLACES) | 29% | 27% | 23% |
| What stands out | Mermentau | LA |
|---|---|---|
| More adults treating high blood pressure | 82.6% | 78.8% |
| More older adults who have lost all their teeth | 25.5% | 18.1% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
None within 15 miles of Mermentau; the nearest are
About 4 of every 100 Mermentau residents are enrolled in college, against 6 across Louisiana.
Where Mermentau’s working residents go each day. Line width shows the share.
Census LEHD 2023
Village in Louisiana, United States
Mermentau is a village in Acadia Parish, Louisiana, United States. As of the 2020 census, Mermentau had a population of 516. It is part of the Crowley Micropolitan Statistical Area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Mermentau has fewer than 1,000 residents, too few for fair grades; the figures below are still real.