|• Total||0.96 sq mi (2.48 km2)|
|• Land||0.96 sq mi (2.48 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||69 ft (21 m)|
|• Density||1,100/sq mi (420/km2)|
|Time zone||UTC-6 (CST)|
|• Summer (DST)||UTC-5 (CDT)|
70786 (PO Box)
Watson Post Office was established on February 20, 1894, by George A. Watson. The first Live Oak School was built in 1895 on land donated by Rev. Joel Ott. Several buildings were used for classes there, until the present site was purchased and a two-story school built. Published histories of Live Oak Methodist Church state that the first church was built not more than a quarter-mile from the present site prior to the Civil War. It was destroyed by Union soldiers. The church history states that W.C. Newsom, Huff Jones, George Nesom, J.B. Easterly and James Chandler erected a new building shortly after the Civil War fire. In 1893, under the pastorate of J.P. Haney of the Mississippi Conference, the frame church that was used until 1950 was constructed. As of April 2011, there are three churches in Watson, the oldest turned into a thrift store. The newest, finished in late 2010, is by far the tallest.
Since Watson is unincorporated, Watson's ZIP code of 70786 is available only to post office box recipients. All other residences and businesses use a mailing address for Denham Springs.
Watson is located in northwest Livingston Parish at  The village is north of Denham Springs and is situated around the intersection of Range Road (LA 16) and Springfield Road (LA 1019). LA 16 forms the western border of the CDP; the highway leads south 6 miles (10 km) to Denham Springs and northeast 32 miles (51 km) to Amite City. Watson sits at an elevation of 65 feet (20 m).(30.575, -90.953).
Watson is located in a humid, subtropical region. The mild, short, wet, and somewhat warm winters are followed by long, hot, humid, and fairly wet summers.
Watson is within the Livingston Parish Public Schools system and is served by:
- Live Oak High School
- Live Oak Junior High School
- Live Oak Middle School
- Live Oak Elementary (Watson)
- North Live Oak Elementary
- South Live Oak Elementary
- "Total Population: 2010 Census DEC Summary File 1 (P1), Watson CDP, Louisiana". data.census.gov. U.S. Census Bureau. Retrieved February 28, 2020.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "U.S. Gazetteer Files: 2019: Places: Louisiana". U.S. Census Bureau Geography Division. Retrieved February 28, 2020.