Mandeville is a city of 12,946 people in Louisiana. That is roughly 55% ahead of the Louisiana median. That puts it in the top 9% of US cities for household income. This is an unusually credentialed place: 49% of adults have a four-year degree. The median age is 43.7, about 5 years above the US median. The population is up 23% since 2000.
At a glance
Wealthier
median household income $94,405, above the US median
US median: $82,259
Older
median age 43.7
US median: 38.9
More educated
49% hold a bachelor's degree
US average: 36%
Less affordable
home values up 31%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Mandeville
What changed most since 1990
White share89.5% → 82.9%(−6.6 pts)US over the same years: −17.8 pts
Population7,083 → 12,946(+83%)US over the same years: +35%
Median age32.0 → 43.7(+11.7 years)US over the same years: +6.0 years
Mandeville's population equals 4.8% of St. Tammany Parish's. Its number of people who work from home equals 8.3% of the county's. Its number of residents living in poverty equals 3.0% 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)44.8%(350)
US avg: 26.4%
Gulf War (1990s)38.4%(300)
US avg: 24.3%
Vietnam era34%(266)
US avg: 33.1%
Korean War3.1%(24)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 782 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
Mandeville, decade by decade
Mandeville 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
7,083
$79,740
$232,087
34.3%
24.1
2000
10,489
$95,637
$288,186
42.7%
22.4
2010
11,560
$92,994
$388,558
39.6%
30.1
2020
13,192
$93,046
$370,884
54.5%
42.4
2024
12,946
$94,405
$376,100
49.0%
38.0
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.
