Luling is a census-designated place (CDP) in St. Charles Parish, Louisiana, United States. The population was 11,512 at the 2000 census and 12,119 at the 2010 census
Luling is located at 29°54′48″N 90°21′50″W (29.913260, -90.364008) and has an elevation of 7 feet (2.1 m).
According to the United States Census Bureau, the CDP has a total area of 19.5 square miles (51 km2) of which 18.5 square miles (48 km2) is land and 1.1 square miles (2.8 km2) (5.42%) is water.
As of the census of 2000, there were 11,514 people, 3,899 households, and 3,224 families residing in the CDP. The population density was 622.7 people per square mile (240.4/km2). There were 4,101 housing units at an average density of 221.8 per square mile (85.6/km2). The racial makeup of the CDP was 81.98% White, 15.50% African American, 0.26% Native American, 0.74% Asian, 0.03% Pacific Islander, 0.63% from other races, and 0.87% from two or more races. Hispanic or Latino of any race were 2.69% of the population.
There were 3,899 households, out of which 44.8% had children under the age of 18 living with them, 66.6% were married couples living together, 11.9% had a female householder with no husband present, and 17.3% were non-families. 14.2% of all households were made up of individuals, and 4.9% had someone living alone who was 65 years of age or older. The average household size was 2.92 and the average family size was 3.23.