Slidell is a city located in St. Tammany Parish, Louisiana. Slidell has a 2025 population of 28,387. Slidell is currently declining at a rate of -0.21% annually and its population has decreased by -1.07% since the most recent census, which recorded a population of 28,694 in 2020.
The average household income in Slidell is $83,948 with a poverty rate of 15.39%.The median age in Slidell is 38.6 years: 38 years for males, and 39.1 years for females.
Data after 2023 is projected based on recent change
The racial composition of Slidell includes 63.31% White, 20.58% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 18,147 | 63.31% |
Black or African American | 5,899 | 20.58% |
Two or more races | 2,731 | 9.53% |
Other race | 740 | 2.58% |
Asian | 588 | 2.05% |
Native American | 559 | 1.95% |
Married
Widowed
Divorced
Separated
Never Married
Slidell's average per capita income is $48,191. Household income levels show a median of $66,657. The poverty rate stands at 15.39%.
Name | Median | Mean |
---|---|---|
Married Families | $94,935 | - |
Families | $80,330 | $92,723 |
Households | $66,657 | $83,948 |
Non Families | $44,756 | $59,114 |
Average Income
Median Household Income
Poverty Rate