Slidell is a city located in St. Tammany Parish Louisiana. Slidell has a 2024 population of 28,582. Slidell is currently declining at a rate of -0.12% annually and its population has decreased by -0.47% since the most recent census, which recorded a population of 28,716 in 2020.
The average household income in Slidell is $78,730 with a poverty rate of 15.6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Slidell is 38.7 years, 37.3 years for males, and 39.5 years for females.
According to the most recent ACS, the racial composition of Slidell was:
White
Black or African American
Two or more races
Asian
Native American
Other race
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 10,761 | 2.63 | 70.3 | 29.7 |
| Married | 4,450 | 3.32 | 86.1 | 13.9 |
| Non Family | 3,681 | 1.26 | 59.5 | 40.5 |
| Female | 1,878 | 3.33 | 55.1 | 44.9 |
| Male | 752 | 3.5 | 67 | 33 |
3.19
Average Family Size
2.63
Average Household Size
70.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among other race people with a rate of 97.31%.
The highest rate of bachelors degrees is among other race people with a rate of 81.17%.
All
Male
Female
$45,077
Average Earnings
$54,167
Average Male
$35,422
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
93.68% of Slidell residents speak only English, while 6.32% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.35% of the population.
rate
15.6%
Overall Poverty Rate
13.06%
Male Poverty Rate
17.8%
Female Poverty Rate
The race most likely to be in poverty in Slidell is Native, with 80.72% below the poverty level.
The race least likely to be in poverty in Slidell is Other, with 2.02% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 4.54%. Among those working part-time, it was 14.21%, and for those that did not work, the poverty rate was 21.15%.
Married
Widowed
Divorced
Separated
NeverMarried
43.8%
Overall Marriage Rate
48.3%
Male Marriage Rate
40.0%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.25%
Veteran Poverty Rate
38.08%
Veteran Disability Rate
LaborForceParticipation
62.3%
Labor Force Participation
57.4%
Employment Rate
5.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
66.82%
Born in Slidell
96.04%
Native Born
3.96%
Foreign Born
1.27%
Non Citizen
2.69%
Naturalized
96.04% of Slidell residents were born in the United States, with 66.82% having been born in Louisiana. 1.27% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 28,414 | -34 | -0.12% |
| 2028 | 28,448 | -33 | -0.12% |
| 2027 | 28,481 | -34 | -0.12% |
| 2026 | 28,515 | -33 | -0.12% |
| 2025 | 28,548 | -34 | -0.12% |
| 2024 | 28,582 | -33 | -0.12% |
| 2023 | 28,615 | -34 | -0.12% |
| 2022 | 28,649 | -162 | -0.56% |
| 2021 | 28,811 | 95 | 0.33% |
| 2020 | 28,716 | 958 | 3.45% |
| 2019 | 27,758 | -108 | -0.39% |
| 2018 | 27,866 | -111 | -0.4% |
| 2017 | 27,977 | -5 | -0.02% |
| 2016 | 27,982 | 56 | 0.2% |
| 2015 | 27,926 | 236 | 0.85% |
| 2014 | 27,690 | 84 | 0.3% |
| 2013 | 27,606 | 99 | 0.36% |
| 2012 | 27,507 | 31 | 0.11% |
| 2011 | 27,476 | 134 | 0.49% |
| 2010 | 27,342 | 1,647 | 6.41% |
| 2000 | 25,695 | 1,571 | 6.51% |
| 1990 | 24,124 | -2,594 | -9.71% |
| 1980 | 26,718 | 10,617 | 65.94% |
| 1970 | 16,101 | 9,745 | 153.32% |
| 1960 | 6,356 | 2,892 | 83.49% |
| 1950 | 3,464 | 600 | 20.95% |
| 1940 | 2,864 | 57 | 2.03% |
| 1930 | 2,807 | -151 | -5.1% |
| 1920 | 2,958 | 0 | 0% |