Ouachita Parish, Louisiana
Parish of Ouachita
Ouachita Parish Courthouse in Monroe was built in the 1930s by the contractor George A. Caldwell
Ouachita Parish Courthouse in Monroe was built in the 1930s by the contractor George A. Caldwell
Flag of Ouachita Parish, Louisiana
Official seal of Ouachita Parish, Louisiana
Location within the U.S. state of Louisiana
Location within the U.S. state of Louisiana
Louisiana's location within the U.S.
Louisiana's location within the U.S.
Country United States
State Louisiana
RegionNorth Louisiana
FoundedMarch 31, 1807
Named forOuachita people
Parish seat (and largest city)Monroe
 • Total1,640 km2 (632 sq mi)
 • Land1,600 km2 (610 sq mi)
 • Water50 km2 (21 sq mi)
 • percentage9 km2 (3.4 sq mi)
 • Total160,368
 • RankLA: 8th
 • Density98/km2 (250/sq mi)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
Area code318
Congressional district5th
WebsiteOuachita Parish Police Jury
Ouachita Parish Public Library in downtown West Monroe

Ouachita Parish (French: Paroisse d'Ouachita) is located in the northern part of the U.S. state of Louisiana. As of the 2020 census, the population was 160,368.[1] The parish seat is Monroe.[2] The parish was formed in 1807.[3]

Ouachita Parish is part of the Monroe, Louisiana Metropolitan Statistical Area. Located here is Watson Brake, the oldest indigenous earthwork mound complex in North America. It was built around 3500 BCE, making it older than the Ancient Egyptian pyramids or Britain's Stonehenge. It is on privately owned land and not available for public viewing.[4]



Main article: History of Louisiana § Prehistory

Ouachita Parish was the home to many succeeding Native American groups in the thousands of years before Europeans colonized the area. Peoples of the Marksville culture, Troyville culture, Coles Creek culture and Plaquemine culture built villages and earthwork mound sites throughout the area. Notable examples include the Filhiol Mound Site, located on a natural levee of the Ouachita River.[5]

The oldest and most significant is Watson Brake, the most ancient mound complex in North America, dated to 5400 BP (before present), or about 3500 BCE. Its dating changed archeologists' understanding of the antiquity of mounds in North America and what types of cultures constructed them. This site is located on private land and not available for viewing.

Historic era

The parish was named after the Ouachita River, which flows through southern Arkansas and northeastern Louisiana, and the Ouachita tribe who lived along it. Beginning about 1720, French settlers arrived in what became organized as modern Ouachita Parish. Colonists developed a plantation on Bayou DeSiard that used African slave labor. The Natchez Indians destroyed the Ouachita plantations during the Natchez Revolt of 1729–1731, and the French did not return.

Beginning in the 1750s, Choctaw Indians began hunting in northern Louisiana, including the Ouachita country, expanding from their traditional territory in what is now Mississippi. At the time, only a few French families moved north into this area from the Opelousas Post on the Red River.

Following its defeat in the Seven Years' War, in 1763 France ceded its territories in North America east of the Mississippi River to the victor Great Britain. Spain took over French territories west of the Mississippi, including nominally in Louisiana. In 1769, Alejandro O'Reilly, the first Spanish governor to rule successfully in West Louisiana, claimed Ouachita Parish for Spain. A census of the parish that year recorded 110 white people. In 1769 Spain abolished the Indian slave trade and Indian slavery in its colonies.

Even in the 19th century, after the United States acquired this territory in the Louisiana Purchase of 1803, some mixed-race American slaves were able to win freedom suits by proving Indian ancestry in their maternal line; under most southern state slave laws, children were born into the status of the mother. Thus a mixed-race child of an Indian mother or grandmother was legally free in former Spanish territory west of the Mississippi River, such as Louisiana, Arkansas or Missouri, as the Indians had been free people since 1769.

In 1783, Don Juan Filhiol was among Frenchmen who began to work for the Spanish colonial government in Louisiana. (He was born Jean-Baptiste Filhiol (1740) in Eymet, France (near Bordeaux), to French Calvinists François Filhiol and Anne Marie Teyssonnière, cloth merchants.)[6] He was assigned that year to establish the first European outpost in the area of the Ouachita River Valley, called Poste d'Ouachita. With his wife, a few soldiers and slaves, his small party made the slow, arduous journey by keelboat up the Mississippi, Red, Black and Ouachita rivers to reach this area. In 1785 the European population of the entire Ouachita District (which extended into present-day Arkansas) was only 207.[7]

Originally based in Arkansas, Filhiol surveyed his grant and settled in 1785 at Prairie des Canots (included within the present-day city of Monroe). He gradually organized settlers, including trying to train some in military skills. He built Fort Miro on his land to provide protection for settlers from the Indians. At the same time, he worked to establish trade with the Chickasaw people and other Native Americans of the area. He was tasked with organizing the settlers in the Ouachita River Valley, while keeping out Americans and establishing good relations for trade with the Native Americans. Filhio served as commandant of Poste d'Ouachita until 1800, when he retired. He continued to live on his plantation here.[7]

Acquired by United States

Other settlers and merchants were attracted to the trading post, which became known as Fort Miro, with a town developing by 1805, two years after the United States acquired the Louisiana Purchase from France. This was the vast former French territory (France had reacquired it from Spain for a brief period) west of the Mississippi and outside the Southwest and California, which were still Spanish territory. In 1819 the Americans renamed Fort Miro as the Ouachita Post. A year or so later, they changed the town's name to Monroe, after the first steamboat to reach it in travel up the Ouachita River. The arrival of the powered paddle wheeler was a landmark event, as it connected the town to much easier travel to and from other markets and stimulated its growth.

On March 31, 1807, the Territory of Orleans was divided into 19 sub-districts. The very large Ouachita Parish was one of these original 19; later it was broken up into eight other parishes (Morehouse, Caldwell, Union, Franklin, Tensas, Madison, East Carroll, and West Carroll), as more settlers entered the area and developed towns and plantations. Some brought slaves with them, but many bought slaves at markets. In the early 19th century, a total of one million slaves were forcibly moved through the domestic slave trade from the Upper South to the Deep South of the cotton plantation districts. They traveled overland or were shipped in the coastwise trade to Gulf ports.

Post-Reconstruction to present

Following the Reconstruction era, as white Democrats regained control of the state government, they increasingly worked to re-establish dominance over the freedmen in Ouachita Parish. Elections were often won by intimidation and fraud, and they worked to establish white supremacy. Particularly in the late 19th and early 20th centuries, lynchings mostly of black men by white mobs in Ouachita and across the South were a form of racial terror by which the whites enforced their dominance. A 2015 study of lynchings found that from 1877 to 1950, a total of 38 people were lynched in Ouachita Parish.[8] This was the third-highest total in the state,[8] and the fifth-highest total of lynchings of any county in the South.[9] Among the victims was George Bolden, an illiterate black man "accused of writing a lewd note to a white woman". Before he went to trial, he was lynched near Monroe on April 30, 1919.[9]

In 1883, the first railroad bridge across the Ouachita River was built, improving connections for the town with other markets.

In 1916, the Monroe natural gas field was discovered. The field stretched more than 500 square miles (1,000 km2) and was estimated to have 6,500,000,000,000 cubic feet (180 km3) of natural gas in it. As a result, for a time the city of Monroe was known as the natural gas capital of the world. The new industry generated many jobs. From 1920 to 1930, the population of Ouachita Parish increased by more than 79 percent, to 54,000 people, as migrants arrived for work. (see Demographics section and table.)

The town of Sterlington was incorporated in August 1961, and in 1974 the town of Richwood was incorporated. Ouachita Parish's boundaries have changed 23 times during its history, mostly due to the formation of other parishes in the 19th century.


The Ouachita River separates Monroe from West Monroe near the parish courthouse.

According to the U.S. Census Bureau, the parish has a total area of 632 square miles (1,640 km2), of which 610 square miles (1,600 km2) is land and 21 square miles (54 km2) (3.4%) is water.[10]

Major highways

Adjacent parishes

National protected areas




Unincorporated areas

Census-designated places

Other unincorporated communities


Historical population
U.S. Decennial Census[11]
1790-1960[12] 1900-1990[13]
1990-2000[14] 2010-2019[1]
Ouachita Parish racial composition as of 2020[15]
Race Number Percentage
White (non-Hispanic) 87,426 54.52%
Black or African American (non-Hispanic) 58,804 36.67%
Native American 413 0.26%
Asian 2,276 1.42%
Pacific Islander 30 0.02%
Other/Mixed 5,761 3.59%
Hispanic or Latino 5,658 3.53%

As of the 2020 United States census, there were 160,368 people, 57,835 households, and 34,816 families residing in the parish.


The top employers in the parish, according to the North Louisiana Economic Partnership, are:

No. Employer Employees
1 Lumen Technologies 2,360
2 St. Francis Specialty Hospital 1,584
3 State of Louisiana 1,363
4 J.P. Morgan Chase 1,291
5 Glenwood Regional Medical Center 1,156
6 Wal-Mart Stores 912
7 Ouachita Parish 871
8 City of Monroe 840
9 Graphic Packaging International 840
10 Tolliver Oil & Gas 750

Law enforcement

Ouachita Parish Sheriff's Office
Jurisdictional structure
General nature
Operational structure
HeadquartersMonroe, Louisiana
Agency executive

The Ouachita Parish Sheriff's Office (OPSO) is the primary law enforcement agency of Ouachita Parish. It falls under the authority of the Sheriff, who is the chief law enforcement officer of the parish. Since the formation of the Sheriff's Office, six deputies and one Sheriff have been killed in the line of duty, the most common cause being gunfire.[16] The Ouachita Correctional Center (OCC) was opened in 1963, presently houses a maximum of 1,062 offenders, and employs 124 full time deputies.[17]


United States presidential election results for Ouachita Parish, Louisiana[18]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 42,255 61.09% 25,913 37.46% 998 1.44%
2016 41,734 61.36% 24,428 35.91% 1,855 2.73%
2012 40,948 59.80% 26,645 38.91% 881 1.29%
2008 41,741 62.07% 24,813 36.90% 690 1.03%
2004 41,750 64.78% 22,016 34.16% 678 1.05%
2000 35,107 60.31% 21,457 36.86% 1,647 2.83%
1996 28,559 49.59% 24,525 42.58% 4,510 7.83%
1992 27,600 48.85% 20,835 36.87% 8,067 14.28%
1988 33,858 67.32% 15,429 30.68% 1,005 2.00%
1984 37,270 69.57% 15,525 28.98% 779 1.45%
1980 29,799 62.98% 16,306 34.46% 1,209 2.56%
1976 24,082 59.53% 15,738 38.91% 631 1.56%
1972 24,860 74.74% 6,920 20.80% 1,483 4.46%
1968 10,089 31.82% 6,470 20.41% 15,145 47.77%
1964 21,024 83.44% 4,174 16.56% 0 0.00%
1960 10,525 54.56% 5,202 26.97% 3,564 18.47%
1956 7,094 46.80% 4,372 28.84% 3,692 24.36%
1952 8,842 47.49% 9,775 52.51% 0 0.00%
1948 1,729 16.01% 4,213 39.00% 4,860 44.99%
1944 2,627 29.33% 6,329 70.67% 0 0.00%
1940 1,509 15.07% 8,506 84.93% 0 0.00%
1936 1,113 12.72% 7,635 87.28% 0 0.00%
1932 423 6.58% 5,968 92.86% 36 0.56%
1928 1,380 33.50% 2,739 66.50% 0 0.00%
1924 480 22.77% 1,542 73.15% 86 4.08%
1920 164 9.96% 1,481 89.98% 1 0.06%
1916 35 2.79% 1,215 96.97% 3 0.24%
1912 17 1.58% 902 83.91% 156 14.51%


Ouachita Parish School Board serves areas outside of the City of Monroe with primary and secondary schools. Monroe City School System serves areas within Monroe.

Monroe is also the home of the University of Louisiana at Monroe.


A documentary entitled The Gift of the Ouachita by filmmaker George C. Brian (1919–2007), head of the Division of Theater and Drama at the University of Louisiana at Monroe is a history of Monroe as the "gift of the Ouachita River".

National Guard

1022nd Engineer Company (Vertical) of the 527th Engineer Battalion of the 225th Engineer Brigade is located in West Monroe, Louisiana. 528th Engineer Battalion (To the Very End) also part of the 225th Engineer Brigade is headquartered in Monroe.

Notable people

See also


  1. ^ a b "State & County QuickFacts". United States Census Bureau. Archived from the original on June 6, 2011. Retrieved August 10, 2013.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. ^ "Ouachita Parish". Center for Cultural and Eco-Tourism. Retrieved September 6, 2014.
  4. ^ Saunders, Joe W.; Mandel, Rolfe D.; Sampson, C. Garth; Allen, Charles M.; Allen, E. Thurman; Bush, Daniel A.; Feathers, James K.; Gremillion, Kristen J.; Hallmark, C. T.; Jackson, H. Edwin; Johnson, Jay K.; Jones, Reca; Saucier, Roger T.; Stringer, Gary L.; Vidrine, Malcolm F. (2005), "Watson Brake, a Middle Archaic Mound Complex in Northeast Louisiana", American Antiquity, 70 (4): 631–668, doi:10.2307/40035868, JSTOR 40035868, S2CID 162372990
  5. ^ "Indian Mounds of Northeast Louisiana:Filhiol Mound". Archived from the original on December 24, 2012. Retrieved October 20, 2011.
  6. ^ "Don Juan Filhiol (1740–1821)", Encyclopedia of Arkansas Culture and History; accessed 29 April 2018
  7. ^ a b Kelby Ouchley, "Don Juan Filhiol" Archived 2016-08-28 at the Wayback Machine, KnowLA (Encyclopedia of Louisiana)
  8. ^ a b "Supplement: Lynchings by County/ Louisiana: Ouachita ", 3rd edition Archived 2017-10-23 at the Wayback Machine, from Lynching in America: Confronting the Legacy of Racial Terror, 2015, Equal Justice Institute, Montgomery, Alabama
  9. ^ a b Kaleb Causey, "Ouachita Parish's bloody past appears in lynching study", News-Star, 24 February 2015; accessed 20 August 2016
  10. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on September 28, 2013. Retrieved August 20, 2014.
  11. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved August 20, 2014.
  12. ^ "Historical Census Browser". University of Virginia Library. Retrieved August 20, 2014.
  13. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved August 20, 2014.
  14. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved August 20, 2014.
  15. ^ "Explore Census Data". data.census.gov. Retrieved December 29, 2021.
  16. ^ Officer Down Memorial Page
  17. ^ "Ouachita Correctional Center". Ouachita Parish Sheriff's Office. Retrieved October 6, 2012.
  18. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved March 7, 2018.

32°29′N 92°10′W / 32.48°N 92.16°W / 32.48; -92.16