Jefferson Parish, Louisiana

parish in Louisiana, United States

Jefferson Parish is a parish in the U.S. state of Louisiana. Most of the suburbs of New Orleans are in this parish. Because of this Jefferson parish has the most population in the state.

Jefferson Parish
City Hall in Gretna
City Hall in Gretna
Map of Louisiana highlighting Jefferson Parish
Location within the U.S. state of Louisiana
Map of the United States highlighting Louisiana
Louisiana's location within the U.S.
Coordinates: 29°44′N 90°06′W / 29.73°N 90.1°W / 29.73; -90.1
Country United States
State Louisiana
FoundedFebruary 11, 1825
Named forPresident Thomas Jefferson
Largest communityMetairie
 • Total665 sq mi (1,720 km2)
 • Land296 sq mi (770 km2)
 • Water370 sq mi (1,000 km2)  56%%
 • Estimate 
 • Density1,463/sq mi (565/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional districts1st, 2nd, 6th

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