|La ville de chêne par vaux|
|Elevation||112 ft (34.1 m)|
|Area||13.6 km2 (5.3 sq mi)|
|- land||13.4 km2 (5.2 sq mi)|
|- water||0.2 km2 (0.1 sq mi), 1.47%|
|Density||578.5 / km2 (1,498.3 / sq mi)|
|Mayor||Mayor Gene Paul|
|- summer (DST)||CDT (UTC-5)|
Oakdale was founded as "Dunnsville" by William T. Dunn. The Leatherwood Museum, which contains the history of Allen Parish, reopened in a renovated facility on September 27, 2008.
According to the United States Census Bureau, the city has a total area of 5.3 square miles (13.6 km2), of which 5.2 square miles (13.4 km2) is land and 0.077 square miles (0.2 km2), or 1.18%, is water. Oakdale's closest neighbor in Allen Parish is Elizabeth, located just west of Oakdale.
As of the census of 2000, there were 8,137 people, 2,246 households, and 1,525 families residing in the city. The population density was 1,603.6 people per square mile (619.7/km²). There were 2,512 housing units at an average density of 495.1 per square mile (191.3/km²). The racial makeup of the city was 62.07% White, 34.94% African American, 0.57% Native American, 1.23% Asian, 0.01% Pacific Islander, 0.33% from other races, and 0.85% from two or more races. Hispanic or Latino of any race were 12.22% of the population.
There were 2,246 households out of which 34.5% had children under the age of 18 living with them, 40.6% were married couples living together, 23.0% had a female householder with no husband present, and 32.1% were non-families. 29.0% of all households were made up of individuals and 13.7% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.13.
In the city the population was spread out with 21.2% under the age of 18, 10.3% from 18 to 24, 38.6% from 25 to 44, 18.3% from 45 to 64, and 11.6% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 157.4 males. For every 100 females age 18 and over, there were 179.2 males.
The median income for a household in the city was $22,826, and the median income for a family was $28,506. Males had a median income of $32,179 versus $16,039 for females. The per capita income for the city was $10,288. About 21.7% of families and 23.4% of the population were below the poverty line, including 25.1% of those under age 18 and 22.9% of those age 65 or over.
Notable natives and residents 
Federal prison 
Oakdale is home to the Oakdale Federal Correctional Complex, a minimum security prison for male inmates, which include former WorldCom CEO Bernard Ebbers who is serving a 25-year sentence for his involvement in the accounting scandal that toppled that company. The prison also was home to former Louisiana governor Edwin Edwards, who served over eight years of a ten-year sentence for his involvement in a 2000 riverboat gambling racketeering case. Other notable inmates who once served time at the prison include former Governor Don Siegelman of Alabama, who was serving a seven-year sentence but has been released pending appeal, and Andrew Fastow, the former Chief Financial Officer for Enron Corporation, who is serving six years. Former Louisiana Insurance Commissioner James H. "Jim" Brown also served time in the facility. Former New Orleans city councilman Oliver Thomas, currently serving a 37-month federal prison sentence after pleading guilty to accepting bribes, served the duration of his sentence at the Oakdale complex.
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Oakdale city, Louisiana". U.S. Census Bureau, American Factfinder. Retrieved May 14, 2013.
- Bill Sumrall (September 27, 2008). "A step into past: Museum showcases history of Allen Parish". The Town Talk (Alexandria). Retrieved May 14, 2013.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- For Webber, Oakdale is no Place Like Home from Network World, September 27, 2006
- Around the Nation - washingtonpost.com
- Frequently Asked Questions from www.jimbrownla.com
- Former New Orleans city councilman Oliver Thomas transferred to prison in Louisiana from The Times-Picayune, 25 June 2009