Jefferson is home to 9,703 people in Louisiana. At a median age of 45.4, this is an older place than the country as a whole. There are 3,584 people per square mile. Owners hold 57% of the housing stock. Home values have more than doubled since 2000, reaching $247,700. Households take in $57,235 at the median, 30% less than the US figure.
At a glance
Lower income
median household income $57,235, below the US median
US median: $82,259
Older
median age 45.4
US median: 38.9
Average education
36% hold a bachelor's degree
US average: 36%
Less affordable
home values up 39%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Jefferson
What changed most since 1990
Population14,521 → 9,703(−33%)US over the same years: +35%
Homes owned by their occupants50.3% → 57.3%(+7.0 pts)US over the same years: +0.9 pts
Median age36.1 → 45.4(+9.3 years)US over the same years: +6.0 years
Jefferson's population equals 2.3% of Jefferson Parish's. Its number of people who work from home equals 4.3% of the county's. Its number of foreign-born residents equals 1.2% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)15.9%(68)
US avg: 26.4%
Gulf War (1990s)7.5%(32)
US avg: 24.3%
Vietnam era38.2%(164)
US avg: 33.1%
Korean War14.9%(64)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 429 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Jefferson, decade by decade
Jefferson population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
14,521
$57,330
$158,885
18.8%
43.8
2000
11,843
$58,486
$177,794
19.9%
58.6
2010
11,193
$59,836
$249,304
21.6%
67.0
2020
10,633
$56,245
$229,197
29.2%
73.0
2024
9,703
$57,235
$247,700
35.7%
67.6
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
