Slidell, Louisiana Population 2020

27,661
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Slidell is a city located in Louisiana. With a 2020 population of 27,661, it is the 13th largest city in Louisiana and the 1379th largest city in the United States. Slidell is currently declining at a rate of -0.09% annually but its population has increased by 2.19% since the most recent census, which recorded a population of 27,068 in 2010. Slidell reached it's highest population of 27,856 in 2016. Spanning over 16 miles, Slidell has a population density of 1,804 people per square mile.

The average household income in Slidell is $70,326 with a poverty rate of 14.57%. The median rental costs in recent years comes to $1,018 per month, and the median house value is $156,200. The median age in Slidell is 36.7 years, 34.2 years for males, and 38.9 years for females. For every 100 females there are 89.0 males.

Slidell Demographics

According to the most recent ACS, the racial composition of Slidell was:

  • White: 75.52%
  • Black or African American: 18.15%
  • Asian: 2.54%
  • Two or more races: 2.13%
  • Other race: 1.05%
  • Native American: 0.60%
  • Native Hawaiian or Pacific Islander: 0.02%
The current population of Slidell, Louisiana is 27,661, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 27,711.The last official US Census in 2010 recorded the population at 27,068.

Slidell, Louisiana Population 2020

Population by Race

Race Population Percentage
White20,97175.52%
Black or African American5,03918.15%
Asian7052.54%
Two or More Races5922.13%
Some Other Race2911.05%
American Indian and Alaska Native1660.60%
Native Hawaiian and Other Pacific Islander50.02%
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Slidell Population Pyramid 2020

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Slidell Median Age

36.7


Total

34.2


Male

38.9


Female

Slidell Adults

There are 20,663 adults, (4,727 of whom are seniors) in Slidell.

Slidell Age Dependency

74.3

Age Dependency Ratio

29.7

Old Age Dependency Ratio

44.6

Child Dependency Ratio

Slidell Sex Ratio

Female

14,691

52.90%

Male

13,078

47.10%

Slidell Households and Families

Slidell Renter vs Owner Occupied by Household Type

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Slidell Household Types

Type Owner Renter
Married83.3%16.7%
All69.7%30.3%
Non Family61.8%38.2%
Female55.3%44.7%
Male54.6%45.4%

69.7%

Rate of Home Ownership

Type Count Average Size Owned
All10,1682.6969.7
Married4,4773.1883.3
Non Family3,2691.361.8
Female1,7543.5355.3
Male6683.9154.6

3.2

Average Family Size

2.69

Average Household Size

9.9%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

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Slidell Education

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Education Attained Count Percentage
Less Than 9th Grade5522.96%
9th to 12th Grade1,3697.35%
High School Graduate5,82531.27%
Some College4,97926.73%
Associates Degree1,2936.94%
Bachelors Degree3,10616.67%
Graduate Degree1,5058.08%
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Slidell Educational Attainment by Race

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Name Total High School Bachelors
White13,57812,4263,326
Black3,3342,948841
Hispanic1,107730163
Asian483483245
Multiple Races22421642
Other Race2065535
Native American99934
Islander55

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 50.72%.

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Name Average Male Female
Overall$36,091$45,944$30,477
Less Than High School$26,655$35,933$15,385
High School Grad$34,375$37,048$32,383
Some College$32,666$43,791$27,112
Bachelors Degree$47,511$54,118$35,617
Graduate Degree$65,352$68,929$49,938

$36,091

Average Earnings

$45,944

Average Male

$30,477

Average Female

Slidell Language

Slidell Language by Age

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Slidell Language

92.17% of Slidell residents speak only English, while 7.83% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.79% of the population.

Slidell Poverty

Slidell Poverty by Race

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Name Total In Poverty Poverty Rate
White19,2502,33612.14%
Black5,00387517.49%
Hispanic1,85150727.39%
Multiple58413723.46%
Native1608351.88%
Asian705395.53%

14.57%

Overall Poverty Rate

12.02%

Male Poverty Rate

16.86%

Female Poverty Rate

Poverty in Slidell

The race most likely to be in poverty in Slidell is Native, with 51.88% below the poverty level.

The race least likely to be in poverty in Slidell is Asian, with 5.53% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.66%. Among those working part-time, it was 24.14%, and for those that did not work, the poverty rate was 21.19%.

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Name Poverty
Less Than High School29.81%
High School13.37%
Some College10.31%
Bachelors or Greater8.97%
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Name Poverty
Male Unemployed59.07%
Female Unemployed37.10%
Female Employed10.83%
Male Employed3.90%

Slidell Income

Slidell Income by Household Type

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Name Median Mean
Households$54,733$70,326
Families$64,832$78,141
Married Families$78,569-
Non Families$29,986$46,771
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Slidell Marital Status

Slidell Marital Status

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Marriage Rates

43.3%

Overall Marriage Rate

47.0%

Male Marriage Rate

40.1%

Female Marriage Rate

Slidell Married by Age and Sex

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Slidell Marriage

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.

Slidell Marital Status by Race

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Slidell Veterans

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1,977

Number of Veterans

1,740

Male Veterans

237

Female Veterans

War Veterans
Vietnam702
Second Gulf War453
First Gulf War403
Korea230
World War II44
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Age Group Veterans
75+516
65 to 74443
35 to 54441
55 to 64306
18 to 34271
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Name Veterans % of Total
White1,60810.18%
Black2566.81%
Hispanic13210.92%
Asian7715.43%
Indian2121.21%
2 or More125.36%
Other31.42%

Slidell Veterans by Education

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10.26%

Veteran Poverty Rate

36.94%

Veteran Disability Rate

Slidell Employment Status

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62.1%

Labor Force Participation

57.4%

Employment Rate

7.2%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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66.48%

Born in Louisiana

95.86%

Native Born

4.14%

Foreign Born

1.66%

Non Citizen

2.47%

Naturalized

Place of Birth

95.86% of Slidell residents were born in the United States, with 66.48% having been born in Louisiana. 1.66% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
202027,661-25-0.09%
201927,686-25-0.09%
201827,711-120-0.43%
201727,831-25-0.09%
201627,856470.17%
201527,8092270.82%
201427,582790.29%
201327,503900.33%
201227,413260.09%
201127,3871230.45%
201027,2641,5690.59%
200025,6951,5710.63%
199024,124-2,594-1.02%
198026,71810,6175.20%
197016,1019,7459.74%
19606,3562,8926.26%
19503,4646001.92%
19402,864570.20%
19302,807-151-0.52%
19202,9580.00%