Mansura is home to the Cochon de Lait Festival, and is the Cochon de Lait Capital of the world.
There were 599 households out of which 35.1% had children under the age of 18 living with them, 34.4% were married couples living together, 29.9% had a female householder with no husband present, and 31.4% were non-families. 28.0% of all households were made up of individuals and 15.0% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 3.09.
In the town the population was spread out with 28.2% under the age of 18, 9.1% from 18 to 24, 25.2% from 25 to 44, 18.9% from 45 to 64, and 18.5% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 85.3 males. For every 100 females age 18 and over, there were 75.9 males.
The median income for a household in the town was $16,836, and the median income for a family was $19,612. Males had a median income of $26,250 versus $15,972 for females. The per capita income for the town was $11,473. About 34.4% of families and 40.4% of the population were below the poverty line, including 55.7% of those under age 18 and 27.6% of those age 65 or over.