City · Louisiana
Mandeville, Louisiana
Mandeville, city, in St. Tammany Parish, Louisiana. Mandeville had 12,918 residents on July 1, 2025 by the Census Bureau's estimate, up 0.7% since 2020; the 2020 Census counted 13,192 and the ACS 2020-2024 5-year estimates put it at 12,946 (±35). GEOID 2248225.
Residents, July 2025 estimate
12,918
Census Bureau estimate (no margin published)
2020 Census count: 13,192 · ACS 2020-2024: 12,946 ±35
Median household income
$94,405
±$11,450 (90% margin)
Louisiana: $60,756
Median home value
$376,100
±$23,581 (90% margin)
Louisiana: $216,500
Median gross rent
$1,422
±$184 (90% margin)
Louisiana: $1,064
Where is Mandeville and what county is it in?
Mandeville is a city in St. Tammany Parish, Louisiana. It covers 9.3 square miles of land, 1,425 residents per square mile in 2020.
Mandeville is in the Slidell-Mandeville-Covington, LA metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Mandeville, and is it growing?
The Census Bureau estimates that 12,918 people lived in Mandeville on July 1, 2025, up 0.7% since 2020, while Louisiana shrank 0.9%. The 2020 Census counted 13,192 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 12,946 (±35).
| Measure | Mandeville | St. Tammany Parish | Change since 2015-2019 |
|---|---|---|---|
| Total population | 12,946 ±35 | 272,421 | +498 |
| Households | 5,582 ±329 | 105,082 | +864 |
| Average household size | 2.27 ±0.13 | 2.57 | −0.31 |
| Housing units | 6,003 ±354 | 113,911 | +841 |
Mandeville's population since 2000
From 10,489 in 2000 to 12,918 in 2025: up 23.2%. The 2000, 2010 and 2020 figures are census counts, each for Mandeville as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Mandeville?
The median resident of Mandeville is 43.7 years old; 23.2% are under 18 and 21.6% are 65 or older. The largest group is non-Hispanic white residents at 82.9%, then Hispanic or Latino residents (of any race) at 5.8%. 6.9% of residents were born outside the United States.
| Measure | Mandeville | St. Tammany Parish | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.7 ±3.2 | 40.5 | no clear change |
| Under 18 years | 23.2% ±3.1 pts | 23.6% | – |
| 65 years and over | 21.6% ±3.3 pts | 18.4% | – |
| Male | 48.8% ±3.1 pts | 48.9% | – |
| Hispanic or Latino (any race) | 5.8% ±2.4 pts | 8.2% | no clear change |
| White alone, not Hispanic | 82.9% ±3.3 pts | 72.4% | −7.3 pts |
| Black or African American alone, not Hispanic | 2.5% ±1.7 pts | 12.0% | – |
| Asian alone, not Hispanic | 4.8% ±2.0 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.3% | – |
| Two or more races, not Hispanic | 3.7% ±2.2 pts | 4.6% | – |
| Some other race alone, not Hispanic | 0.3% ±0.3 pts | 0.8% | – |
| Born outside the United States | 6.9% ±2.1 pts | 4.5% | no clear change |
| Speak a language other than English at home (age 5+) | 7.8% ±2.3 pts | 7.0% | – |
| Civilian veterans (age 18+) | 7.9% ±2.7 pts | 7.5% | – |
| With a disability | 9.3% ±2.2 pts | 16.1% | – |
| No health insurance coverage | 2.9% ±1.6 pts | 6.8% | −3.4 pts |
| High school graduate or higher (age 25+) | 94.5% ±2.0 pts | 92.0% | – |
| Bachelor's degree or higher (age 25+) | 49.0% ±5.0 pts | 37.7% | no clear change |
| Graduate or professional degree (age 25+) | 19.1% ±4.5 pts | 13.4% | – |
| Lived in the same house a year earlier | 89.4% ±2.7 pts | 88.5% | – |
| Moved from another state in the past year | 1.2% ±0.9 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Mandeville earn?
Half of Mandeville's 5,582 households earn less than $94,405 a year (±$11,450), against $81,202 in St. Tammany Parish and $60,756 in Louisiana. In 2015-2019 it was $89,827 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.1% of residents live below the poverty line.
| Measure | Mandeville | St. Tammany Parish | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $94,405 ±$11,450 | $81,202 | no clear change |
| Mean household income | $139,019 ±$14,420 | $109,896 | – |
| Per capita income | $60,827 ±$5,379 | $43,364 | no clear change |
| People below the poverty line | 7.1% ±2.5 pts | 11.4% | no clear change |
| Children under 18 below the poverty line | 8.3% ±5.7 pts | 15.0% | – |
| Households receiving SNAP | 4.0% ±2.1 pts | 9.0% | – |
| Households with a computer | 97.3% ±1.6 pts | 96.7% | – |
| Households with a broadband subscription | 94.8% ±3.2 pts | 94.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Mandeville?
Owners occupy 68.1% of Mandeville's occupied homes and renters 31.9%. The median owner-occupied home is valued at $376,100 by its owner (±$23,581). The median renter pays $1,422 a month including utilities, and 29.3% of renters pay 35% or more of their income on rent.
| Measure | Mandeville | St. Tammany Parish | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $376,100 ±$23,581 | $284,000 | no clear change |
| Median gross rent | $1,422 ±$184 | $1,332 | no clear change |
| Renters paying 35% or more of income on rent | 29.3% ±9.7 pts | 42.8% | no clear change |
| Median monthly owner costs, with a mortgage | $2,210 ±$239 | $1,813 | – |
| Owner-occupied homes | 68.1% ±5.3 pts | 78.9% | no clear change |
| Renter-occupied homes | 31.9% ±5.3 pts | 21.1% | – |
| Housing units | 6,003 ±354 | 113,911 | +841 |
| Homeowner vacancy rate | 0.5% ±0.8 pts | 1.1% | – |
| Rental vacancy rate | 3.9% ±4.1 pts | 6.6% | – |
| Single-family detached homes | 64.9% ±5.7 pts | 77.4% | – |
| Mobile homes | 0.6% ±0.9 pts | 6.5% | – |
| Built 2020 or later | 3.2% ±1.7 pts | 3.3% | – |
| Built 2010 to 2019 | 7.2% ±2.9 pts | 14.1% | – |
| Built 1939 or earlier | 2.1% ±1.0 pts | 1.6% | – |
| Households with no vehicle | 6.3% ±2.7 pts | 4.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Mandeville building?
Builders took permits for 0 new housing units in Mandeville in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 3.1 across Louisiana.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Mandeville work and get to work?
70.8% of Mandeville's workers drive alone and 22.3% work from home. The average trip to work takes 25.8 minutes. The unemployment rate in 2020-2024 averaged 2.9%.
| Measure | Mandeville | St. Tammany Parish | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.4% ±3.9 pts | 62.9% | – |
| Unemployment rate | 2.9% ±1.3 pts | 4.8% | no clear change |
| Drove alone to work | 70.8% ±6.4 pts | 77.1% | – |
| Carpooled | 5.7% ±3.0 pts | 7.2% | – |
| Public transportation | 0.0% ±0.7 pts | 0.1% | – |
| Walked | 1.2% ±1.4 pts | 0.8% | – |
| Worked from home | 22.3% ±4.8 pts | 13.2% | +14.5 pts |
| Mean travel time to work | 25.8 min ±1.8 | 31.5 min | −4.1 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Mandeville?
3 census tracts lie mostly in Mandeville, and 6 more reach into it (2020 census blocks). Their median household incomes run from $56,985 (Tract 403.06) to $108,500 (Tract 413.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 403.06St. Tammany Parish | 5,529 | $56,985 |
| Tract 413.01St. Tammany Parish | 3,936 | $77,292 |
| Tract 413.02St. Tammany Parish | 2,911 | $108,500 |
| Tract 403.07St. Tammany Parish | 3,848 | $96,398 |
| Tract 412.09St. Tammany Parish | 5,336 | $91,339 |
| Tract 403.04St. Tammany Parish | 6,471 | $110,046 |
| Tract 412.11St. Tammany Parish | 7,391 | $104,432 |
| Tract 412.08St. Tammany Parish | 4,163 | $173,403 |
| Tract 412.12St. Tammany Parish | 3,827 | $103,021 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Mandeville) · Census block assignment files
How does Mandeville compare with other places in Louisiana?
By the Census Bureau's July 2025 estimates, Mandeville is the 2,686th-most populous of the 19,476 U.S. incorporated places that have one and the 27th-most populous of 304 in Louisiana.
Mandeville ranks 17th of 251 places in Louisiana with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 27th | 304 |
| Growth 2020-2025 (PEP) | 43rd | 156 |
| Residents per square mile | 83rd | 263 |
| Median household income | 17th | 251 |
| Per capita income | 2nd | 263 |
| Median home value | 3rd | 247 |
| Median gross rent | 20th | 229 |
| Poverty rate | 209th | 216 |
| Bachelor's degree or higher | 7th | 229 |
| Median age | 43rd | 262 |
| Owner-occupied share | 142nd | 260 |
| Work from home | 2nd | 87 |
| Travel time to work | 111th | 260 |
Mandeville's figures with every place in Louisiana (CSV)
Every place in Louisiana, sortable · Compare Mandeville with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Mandeville?
11 of the 57 figures for Mandeville on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Mandeville are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Mandeville.