|• Total||22.1 sq mi (57.2 km2)|
|Elevation||23 ft (7 m)|
|• Density||1,200/sq mi (470/km2)|
|Time zone||UTC-6 (CST)|
|• Summer (DST)||UTC-5 (CDT)|
Prairieville is an expanding bedroom suburb of Baton Rouge. Its name is derived from the once plentiful pastures and prairies that were visible from Highway 73 (Jefferson Hwy.) and Airline Highway, which is now covered with development. Prairieville started off as a quiet community with few people.
In recent decades, Prairieville has benefited from migration out of Baton Rouge, with new residents particularly drawn to the area by its high-performing public schools and low crime rate. Prairieville had an official 2010 census population of 26,895 inhabitants. If it was incorporated it would be the largest city in Ascension Parish. Prairieville is in one of the fastest-growing areas in Louisiana. Prairieville's population is bigger than the parish's two largest incorporated cities, Donaldsonville (7,436) and Gonzales (9,781) combined.
Prairieville is vulnerable to hurricanes and tropical systems due to its proximity to the coast of southeast Louisiana. Hurricane Gustav caused major damage to the Prairieville area; many trees were downed and power lines were down for weeks.
The most notable local property was the Phillips Farm. The farmhouse is still a local landmark in Prairieville, although the original owner died in 2005. The house is lined with live oaks and a white planked fence surrounds the grounds. The pasture was sold in 1992 at the start of the suburban development and a 250-resident subdivision named "Seven Oaks" surrounds the farm where the pastures were.
In 2006, the farmhouse was sold at auction following the death of Dr. Carey A. Phillips. The 40-acre (160,000 m2) tract of land (including the house) has been made into a cemetery now called Oak Lane Memorial Park.
Prairieville's latitude is 30.302N, and the longitude is -90.971W. The elevation is 23 feet (7.0 m).
- Tony Bacala, Republican state representative for Ascension Parish, effective January 2016, resides in Prairieville.
- Grace Broussard who, along with Dale Houston, formed the duo Dale and Grace and had a #1 hit record in 1963, "I'm Leaving It Up to You".
- Former LSU track star and Olympic athlete Lolo Jones lives in Prairieville.
- State Representative Eddie J. Lambert and his wife, Judge Marilyn Montgomery Lambert, reside in Prairieville.
- Sidney McCrory, Louisiana Commissioner of Agriculture and Forestry from 1956 to 1960 and a native of Ascension Parish, is interred at Prairieville Cemetery.
- T. J. Moran, businessman, restaurateur, and philanthropist, opened the first Ruth's Chris Steak House franchise on Airline Highway in Prairieville in 1975.
- The Morrells, a political family in New Orleans, Arthur A. Morrell, Cynthia Hedge-Morrell, and Jean-Paul Morrell, are all former residents of Prairieville.
- Joe Sevario, businessman, represented five parishes, including Ascension, in the Louisiana State Senate from 1976 to 1994.
- Jacob Waguespack, MLB pitcher for the Toronto Blue Jays.
- Former LSU football star and former New York Giants football player Corey Webster has a home in Prairieville.
- Former MLB All-Star, Will Clark San Francisco Giants has a home in Prairieville
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Prairieville CDP, Louisiana". U.S. Census Bureau, American Factfinder. Archived from the original on February 12, 2020. Retrieved May 15, 2013.
- Bill Lodge. "Philanthropist, founder of TJ Ribs, Ruffino's restaurants T.J. Moran dies at age 84, family friend says: Restaurateur funded medical outreach". Baton Rouge Advocate. Archived from the original on May 20, 2015. Retrieved May 19, 2015.