| Place Name | Bayou Vista |
| Place Type | Census Designated Place |
| ZIP Code(s) | 70380 70392 |
| County | Saint Mary Parish |
| Area Code(s) | 985 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 4,615 |
| Population Growth Rate (2010-19) | -9.44% |
| Majority Ethnicity | White 93.44% |
| Metro/Micro Stats Area | Morgan City, LA |
| US Congressional District(s) | Louisiana 3rd |
| State House Districts | 50 |
| State Senate Districts | 21 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.44% |
| African American | 1.04% |
| Hispanic | 0.61% |
| Asian | 0.16% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.75% |