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Iberville Parish, Louisiana facts for kids

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Iberville Parish, Louisiana
Map of Louisiana highlighting Iberville Parish
Location in the state of Louisiana
Map of the USA highlighting Louisiana
Louisiana's location in the U.S.
Founded 1807
Seat Plaquemine
Largest City Plaquemine
 - Total
 - Land
 - Water

653 sq mi (1,691 km²)
619 sq mi (1,603 km²)
34 sq mi (88 km²), 5.2%
 - (2015)
 - Density

54/sq mi (21/km²)
Time zone Central: UTC-6/-5
Named for: Pierre Le Moyne d'Iberville

Iberville Parish (French: Paroisse d'Iberville) is a parish located south of Baton Rouge in the U.S. state of Louisiana. As of the 2010 census, the population was 33,387. Its seat is Plaquemine. The parish was formed in 1807.

Iberville Parish is part of the Baton Rouge, LA Metropolitan Statistical Area.


The parish is named for Pierre Le Moyne d'Iberville, who founded the French colony of Louisiana.

A few archeological efforts have been made in the Parish, mainly to excavate the Native American burial mounds that have been identified there. The first expedition, led by Clarence B. Moore, was an attempt at collecting data from a couple of the sites, and it set the groundwork for later projects. Clarence was mainly interested in the skeletal remains of the previous inhabitants, rather than excavating for archeological items. Archeologists are especially interested in these sites because of their uniformity and size. Some of the mounds are seven hundred feet long, a hundred feet wide and six feet tall. Most of them contain human remains.

Iberville Parish is represented in the Louisiana State Senate by a Republican, attorney Rick Ward, III, a former member of the Louisiana House of Representatives, who has served in the Senate since 2012. The parish is currently represented in the state House by Democrat Major Thibaut of Oscar in Pointe Coupee Parish.


According to the U.S. Census Bureau, the parish has a total area of 653 square miles (1,690 km2), of which 619 square miles (1,600 km2) is land and 34 square miles (88 km2) (5.2%) is water.

Major highways

  • I-10.svg Interstate Highway 10
  • Louisiana 1.svg Louisiana Highway 1
  • Louisiana 30.svg Louisiana Highway 30
  • Louisiana 69.svg Louisiana Highway 69
  • Louisiana 75.svg Louisiana Highway 75
  • Louisiana 76.svg Louisiana Highway 76
  • Louisiana 77.svg Louisiana Highway 77

Adjacent parishes

National protected area

  • Atchafalaya National Wildlife Refuge (part)


Historical population
Census Pop.
1820 4,414
1830 7,049 59.7%
1840 8,495 20.5%
1850 12,278 44.5%
1860 14,661 19.4%
1870 12,347 −15.8%
1880 17,544 42.1%
1890 21,848 24.5%
1900 27,006 23.6%
1910 30,954 14.6%
1920 26,806 −13.4%
1930 24,638 −8.1%
1940 27,721 12.5%
1950 26,750 −3.5%
1960 29,939 11.9%
1970 30,746 2.7%
1980 32,159 4.6%
1990 31,049 −3.5%
2000 33,320 7.3%
2010 33,387 0.2%
Est. 2015 33,095 −0.9%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 33,387 people residing in the parish. 49.3% were Black or African American, 48.8% White, 0.3% Asian, 0.2% Native American, 0.6% of some other race and 0.8% of two or more races. 2.0% were Hispanic or Latino (of any race).

As of the census of 2000, there were 33,320 people, 10,674 households, and 8,016 families residing in the parish. The population density was 54 people per square mile (21/km²). There were 11,953 housing units at an average density of 19 per square mile (7/km²). The racial makeup of the parish was 49.26% White, 49.70% Black or African American, 0.18% Native American, 0.26% Asian, 0.01% Pacific Islander, 0.14% from other races, and 0.45% from two or more races. 1.03% of the population were Hispanic or Latino of any race.

There were 10,674 households, 36.20% of which contained children under age 18, 49.60% of which were married couples living together, 20.40% of which had a female householder with no husband present, and 24.90% were non-families. 21.90% of the households were made up of individuals and 8.50% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.29.

26.20% of the population was under age 18; 10.50% was 18–20 years of age; 31.10% was 25–34 years of age; 21.50% was 45–64 years of age; and 10.70% was age 65 or older. The median age was 34 years. For every 100 females there were 99.80 males. For every 100 females age 18 and over, there were 98.50 males.

The median income for a household in the parish was $29,039, and the median income for a family was $34,100. Males had a median income of $32,074 versus $20,007 for females. The per capita income for the parish was $13,272. About 19% of families and 23% of the population were below the poverty line, including 30% of those under age 18 and 18% of those age 65 or over.

National Guard

The Gillis W. Long Center, located on the outskirts of Carville, LA, is operated by the Louisiana Army National Guard. This post is home to the 415TH MI (Military Intelligence) Battalion, the 241ST MPAD, and the 61st Troop Command. The 415TH MI is a subunit of the 139TH RSG (regional support group).


Map of Iberville Parish Louisiana With Municipal Labels
Map of Iberville Parish, Louisiana With Municipal Labels




Census-designated places

Other unincorporated communities

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