| Name | Jefferson Parish |
| State | Louisiana |
| FIPS Code | 22051 |
| County Seat | Gretna |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 425,657 |
| Population Growth Rate(2020-2024) | -3.55% |
| Majority Ethnicity | White 51.72% |
| Public School Majority Ethnicity | Hispanic 38% |
| Partisan Voting Index | Republican:+7 |
| Unemployment Rate (May 2026) | 4.2% |
| Sales Tax Rate (2025) | 9.75% |
| Area Code(s) | 504 / 985 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 51.72% |
| African American | 25.58% |
| Hispanic | 17.84% |
| Asian | 4.11% |
| Native American | 0.71% |
| Hawaiin/Pacific Islander | 0.03% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 21.37% |
| African American | 33.58% |
| Hispanic | 37.66% |
| Asian | 4.56% |
| Native American | 0.35% |
| Hawaiin/Pacific Islander | 0.05% |