Jefferson Parish Flag

Jefferson Parish

State:
Louisiana

Jefferson Parish's estimated 2026 population is 430,445 with a growth rate of 0.37% in the past year according to the most recent United States census data. Jefferson Parish is the 2nd largest parish in Louisiana. The 2010 population was 432,618 and has seen a growth of -0.5% since that time.

430,445
Total Population
1,430
Population Density (mi²)
2
Population Rank (State)
1.6K 0.37%
Annual Population Growth

Jefferson Parish Population

Demographics

Economics and Income Statistics