Demographics & People — Mermentau, Louisiana
Population Overview
| Population (Census) | 570 |
|---|
| Estimated 2026 | ~800 |
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| Median Age | 64.0 |
|---|
| Total Households | 316 |
|---|
| Family Households | 257 |
|---|
| Average Household Size | 1.8 |
|---|
| Diversity Index | 0.2316 (somewhat diverse) |
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Race & Ethnicity
| White | 478 |
|---|
| Black or African American | 62 |
|---|
| Asian | 0 |
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| Hispanic or Latino | 10 |
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Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 298 |
| Other groups | 131 |
| French (except Basque) | 91 |
| French Canadian | 74 |
| American | 30 |
| English | 26 |
| Canadian | 14 |
| Scottish | 14 |
| Hispanic: Other Hispanic or Latino | 11 |
| Hispanic: Spanish | 11 |
Language
| English Only | 551 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 570 |
|---|
Veterans
| Veterans | 22 |
|---|
| Population 18+ | 577 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mermentau, Louisiana.
