Slidell /slaɪˈdɛl/ is a city on the northeast shore of Lake Pontchartrain in St. Tammany Parish, Louisiana, United States. The population was 27,068 at the 2010 census. Greater Slidell has a population of about 90,000. It is part of the New Orleans−Metairie−Kenner Metropolitan Statistical Area.
Slidell is located at 30°16′45″N 89°46′40″W / 30.27917°N 89.77778°W / 30.27917; -89.77778 (30.279040, -89.777744) and has an elevation of 13 feet (4.0 m). It is in southeastern St. Tammany Parish, located approximately 3 miles (5 km) north of Lake Pontchartrain.
According to the United States Census Bureau, the city has a total area of 15.2 square miles (39.4 km), of which 14.8 square miles (38.4 km) is land and 0.35 square miles (0.9 km), or 2.39%, is water.
According to the 2010 US Census, 27,068 people, 10,050 households, and 7,145 families. live in the city. The racial makeup of the city was 76.0% White, 17.0% African American, 0.5% Native American, 1.6% Asian, 0.0% Pacific Islander, 2.7% from other races, and 2.3% from two or more races. Hispanics or Latinos of any race were 6.3% of the population.
Of the 10,050 households, 31.6% had children under the age of 18 living with them, 48.9% were married couples living together, 16.2% had a female householder with no husband present, and 28.9% were non-families. 23.4% of all households were made up of individuals and 9.4% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.13.
In the city, the population was spread out with 28.0% under the age of 19, 6% from 20 to 24, 26% from 25 to 44, 26.1% from 45 to 64, and 14% who were 65 years of age or older. The median age was 37.3 years. For every 100 females, there were 94.1 males.
There were 11,155 housing units, of which 7,226 (64.8%) were owner-occupied, and 2,824(25.3%) were renter-occupied. The homeowner vacancy rate was 3.6%; the rental vacancy rate was 11.0%. 19,170 people (70.8%) lived in owner-occupied housing units and 7,583 people (28.0%) lived in renter-occupied housing units.
As of the census of 2000, there were 25,695 people, 9,480 households, and 7,157 families residing in the city. The population density was 2,178.5 people per square mile (841.5/km²). There were 10,133 housing units at an average density of 859.1 per square mile (131.8/km²). The racial makeup of the city was 83.13% White, 13.56% African American, 0.49% Native American, 0.72% Asian, 2.05% Hungarian, 0.05% Pacific Islander, 0.62% from other races, and 1.43% from two or more races. Hispanics or Latinos of any race were 2.67% of the population.
Of the 9,480 households, 36.0% had children under the age of 18 living with them, 57.4% were married couples living together, 14.0% had a female householder with no husband present, and 24.5% were non-families. 20.4% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.09.
In the city, the population was spread out with 27.0% under the age of 18, 7.6% from 18 to 24, 28.5% from 25 to 44, 23.3% from 45 to 64, and 13.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 92.0 males. For every 100 females age 18 and over, there were 86.0 males.
The median income for a household in the city was $42,856, and the median income for a family was $48,298. Males had a median income of $40,211 versus $26,050 for females. The per capita income for the city was $19,947. About 9.5% of families and 11.8% of the population were below the poverty line, including 17.6% of those under age 18 and 7.9% of those age 65 or over.