Jefferson Parish's 2026 population is estimated at 430,445, reflecting a 0.37% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Jefferson Parish is the 2nd largest parish in Louisiana. The 2010 population was 432,618 and has grown -0.5% since 2010.
Data after 2023 is projected based on recent change
Overall: 40 years
Female: 41.2 years
Male: 38.9 years
There are 334,289 adults, (80,126 of whom are seniors) in Jefferson Parish.
Female: 221,214 (51.3%)
Male: 209,706 (48.7%)
The racial composition of Jefferson Parish includes 49.77% White, 25.5% Black or African American, 6.75% other race, 4.26% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 214,484 | 49.77% |
| Black or African American | 109,899 | 25.5% |
| Two or more races | 54,130 | 12.56% |
| Other race | 29,094 | 6.75% |
| Asian | 18,338 | 4.26% |
| Native American | 4,868 | 1.13% |
| Native Hawaiian or Pacific Islander | 107 | 0.02% |
Jefferson Parish 's average per capita income is $45,235. Household income levels show a median of $65,252. The poverty rate stands at 16.59%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $107,358 | $135,880 |
| Families | $84,920 | $114,896 |
| Households | $65,252 | $92,680 |
| Non Families | $40,246 | $56,037 |
Average Income
Median Household Income
Poverty Rate