Mandeville, Louisiana Demographics & Population 2026
During the 2020–2024 ACS period, Mandeville, Louisiana had a total population of 12,946, the 39th largest city in Louisiana, with a median household income of $94,405, which is 55% higher than the state average. The poverty rate is 7.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 55% above the state average — one of the wealthiest communities in Louisiana.
- 49.0% of adults hold a bachelor's degree or higher — top 10% in Louisiana.
Mandeville Quick Facts
How Mandeville Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 12,931 | 12,946 | +0.1% |
| Median household income | $89,122 | $94,405 | +5.9% |
| Median home value | $363,300 | $376,100 | +3.5% |
How Mandeville Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 59 | National average: 61
Education
Educational Attainment (Adults 25+)
Mandeville Rankings in Louisiana
Explore Louisiana Rankings
Other Cities in St. Tammany Parish
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Slidell | 28,561 | $70,497 | 15.7% | $217,700 |
| Covington | 11,658 | $75,851 | 11.7% | $295,100 |
| Eden Isle | 7,683 | $78,426 | 4.8% | $371,600 |
| Lacombe | 6,310 | $72,813 | 18.0% | $207,900 |
| Abita Springs | 2,699 | $77,257 | 8.7% | $269,300 |
| Pearl River | 2,614 | $56,719 | 17.9% | $235,200 |
| Madisonville | 869 | $109,583 | 3.6% | $399,600 |
| Folsom | 709 | $62,375 | 12.6% | $226,000 |
| Lewisburg | 484 | $155,179 | 0.0% | $481,400 |
| Sun | 381 | N/A | 11.6% | $160,700 |
Cities Similar to Mandeville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Moss Bluff | 12,482 | $92,036 | $252,900 | 29.0% | 8.9% |
| River Ridge | 13,312 | $84,336 | $357,400 | 38.8% | 9.7% |
| Gonzales | 13,108 | $75,451 | $225,800 | 28.1% | 8.9% |
| Destrehan | 11,619 | $90,509 | $320,700 | 40.4% | 17.3% |
| Claiborne | 13,308 | $72,420 | $219,200 | 35.5% | 11.3% |
Population Overview
Mandeville is a small city located in Louisiana, within St. Tammany Parish. The total population is 12,946. It ranks as the 39th most populous out of 488 Census-designated places in Louisiana.
Age Demographics
The median age in Mandeville is 43.7 years. This is 15% higher than the state median of 38.0 years.
Economy, Income & Housing
The median household income in Mandeville is $94,405. This is 55% higher than the state median of $60,756. It is also 17% higher than the national median of $80,734. The poverty rate stands at 7.1%. This is 62% lower than the state poverty rate of 18.9%. The unemployment rate is 2.9%. This is 54% lower than the state rate of 6.3%. The median home value is $376,100. Housing costs are 74% higher than the state median of $216,500. The home-value-to-income ratio is 4.0x. 68.1% of occupied housing units are owner-occupied. This homeownership rate is 1% higher than the state average of 67.4%.
Race & Ethnicity
The largest racial or ethnic group in Mandeville is White (non-Hispanic), making up 82.9% of the population. Hispanic or Latino residents account for 5.8%. The Black or African American population (2.5%) is well below the state average of 30.5%. The Asian population is significantly higher than the state average (4.8% vs 1.7%).
Education
49.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Mandeville in the top 10% of all cities in the state for educational attainment. This is 81% higher than the state rate of 27.0%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.5%. Notably, 19.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mandeville, Louisiana is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Louisiana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 488 Census-designated places in Louisiana. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Mandeville, Louisiana?
Mandeville, Louisiana has a population of 12,946 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mandeville, LA?
The median household income in Mandeville is $94,405, which is 17% higher than the national median of $80,734.
What is the poverty rate in Mandeville, LA?
The poverty rate in Mandeville is 7.1%. This means approximately 903 residents live below the federal poverty line.
What is the racial makeup of Mandeville, Louisiana?
Mandeville's population is 82.9% White, 2.5% Black, 5.8% Hispanic/Latino, and 4.8% Asian.
What is the median home value in Mandeville, LA?
The median home value in Mandeville is $376,100. The home-value-to-income ratio is 4.0x.
How educated is Mandeville, Louisiana?
49.0% of adults (25+) in Mandeville hold a bachelor's degree or higher, and 19.1% hold a graduate or professional degree.