The Godchaux-Reserve home, the oldest portion of which dates to 1764, is a building on the National Register of Historic Places. In addition, in 2005 Our Lady of Grace Catholic Church which dates back to 1937 was added to The Louisiana National Register of Historic Places (http://www.crt.state.la.us/hp/). Our Lady of Grace was built to serve the needs of the African American Catholic Community.
According to the United States Census Bureau, the CDP has a total area of 17.1 square miles (44.3 km²), of which, 16.1 square miles (41.6 km²) of it is land and 1.0 square miles (2.7 km²) of it (6.13%) is water.
There were 3,068 households out of which 41.5% had children under the age of 18 living with them, 48.6% were married couples living together, 22.2% had a female householder with no husband present, and 23.5% were non-families. 20.8% of all households were made up of individuals and 8.1% had someone living alone who was 65 years of age or older. The average household size was 2.97 and the average family size was 3.45.
In the CDP the population was spread out with 32.2% under the age of 18, 10.4% from 18 to 24, 28.6% from 25 to 44, 19.3% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 90.9 males. For every 100 females age 18 and over, there were 85.1 males.
The median income for a household in the CDP was $32,466, and the median income for a family was $40,191. Males had a median income of $33,297 versus $19,671 for females. The per capita income for the CDP was $13,373. About 18.4% of families and 21.5% of the population were below the poverty line, including 30.8% of those under age 18 and 15.0% of those age 65 or over.
Reserve is the home of chess legend Vincent Glorioso.
Two K-8 schools serve separate areas that have Reserve addresses: