Jefferson Parish is a parish in the state
of Louisiana. Based on the 2010 census, the population was
432,552. The parish was established by the Louisiana
Legislature on February 11, 1825. The parish seat
is Gretna. Jefferson Parish is named in honor of United States
President Thomas Jefferson of Virginia.
Jefferson Parish is included in the New Orleans-Metairie, LA Metropolitan
Statistical Area.
County QuickFacts: CensusBureau Quick Facts
Jefferson Parish was created on 1825, from Orleans Parish and the parish was named in honor of Founding Father Thomas Jefferson. The Parish seat is Gretna.
As reported by the Census Bureau, the parish has a total area of 665 square
miles (1,720 km2), of which 296 square miles (770 km2)
is land and 370 square miles (960 km2) (56%) is water.
Jefferson Parish is located in southeast Louisiana. Part of the Jean Lafitte
National Historical Park and Preserve is located in this parish. Lake Pontchartrain
is located in the northern part of Jefferson Parish. The Mississippi River
is positioned around the midpoint of Jefferson Parish flowing mostly in a
north-west to south-east direction. The bulk of the southern half of Jefferson
parish is uninhabited marshland.
Bordering parishes and counties are as follows:
The parish's public schools are operated by Jefferson Parish Public Schools.