
Jefferson
- County:
- Jefferson Parish
- County Seat:
- No
- Area (mi²):
- 2.707
- State:
- Louisiana
Jefferson is a CDP located in Jefferson Parish, Louisiana. Jefferson has a 2025 population of 9,878. Jefferson is currently declining at a rate of -0.88% annually and its population has decreased by -3.97% since the most recent census, which recorded a population of 10,286 in 2020.
The average household income in Jefferson is $74,696 with a poverty rate of 16.11%. The median age in Jefferson is 44.7 years: 43.3 years for males, and 45.3 years for females.