Madisonville is a town in St. Tammany Parish, Louisiana, United States. The population was 748 at the 2010 census. It is part of the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The ZIP code is 70447.
Madisonville is located at 30°24′26″N 90°9′42″W / 30.40722°N 90.16167°W / 30.40722; -90.16167 (30.407179, -90.161716), on the banks of the Tchefuncte River, near where the river enters Lake Pontchartrain.
According to the United States Census Bureau, the town has a total area of 2.51 square miles (6.51 km), of which 2.49 square miles (6.46 km) is land and 0.02 square miles (0.06 km), or 0.86%, is water.
As of the census of 2000, there were 677 people, 302 households, and 186 families residing in the town. The population density was 277.0 people per square mile (107.1/km²). There were 346 housing units at an average density of 141.6 per square mile (54.8/km²). The racial makeup of the town was 85.67% White, 10.04% Black, 0.74% Native American, 0.15% Asian, 1.77% from other races, and 1.62% from two or more races. Hispanic or Latino of any race were 2.51% of the population.
There were 302 households out of which 21.9% had children under the age of 18 living with them, 44.7% were married couples living together, 10.6% had a female householder with no husband present, and 38.4% were non-families. 31.8% of all households were made up of individuals and 8.9% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.81.
In the town, the population was spread out with 19.2% under the age of 18, 8.7% from 18 to 24, 28.8% from 25 to 44, 29.5% from 45 to 64, and 13.7% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 103.3 males. For every 100 females age 18 and over, there were 100.4 males.
The median income for a household in the town was $50,625, and the median income for a family was $57,083. Males had a median income of $41,042 versus $19,375 for females. The per capita income for the town was $25,114. About 4.5% of families and 7.2% of the population were below the poverty line, including 1.3% of those under age 18 and 17.8% of those age 65 or over.
Madisonville Louisiana neighborhoods include: Arbor Walk, Bedico Creek, Bootlegger, Brewster and Gitz, Coquille, Fairview, Fox Branch Estates, Grand Oaks, Guste Island, Indian Point & Del Oaks, Les Bois, Madison Ridge, Myrtle Grove, North Madisonville, Oak Park Drive, Post Oak Landing, Savannah Trace, Tchefuncte Harbour, Tchefuncte Parc, Timberwood, Whispering Timbers, Windermere/Dominion