# Iberville Parish, Louisiana

Iberville Parish (French: Paroisse d'Iberville) is a parish located south of Baton Rouge in the U.S. state of Louisiana, formed in 1807. The parish seat is Plaquemine. The population was 30,241 at the 2020 census.

## History

The parish is named for Pierre Le Moyne d'Iberville, who founded the French colony of Louisiana.
A few archaeological 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. Moore was mainly interested in the skeletal remains of the previous inhabitants, rather than excavating for archaeological items. Archaeologists 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.
There were at least 2 wooden forts in the area by 1779, also represent St. Gabriel Parish.
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.

## Geography

According to the U.S. Census Bureau, the parish has a total area of 653 square miles (1,690 km$^2$), of which 619 square miles (1,600 km$^2$) is land and 34 square miles (88 km$^2$) (5.2%) is water. Iberville Parish is part of the Baton Rouge metropolitan statistical area.

### Major highways

* Interstate 10
* Louisiana Highway 1
* Louisiana Highway 30
* Louisiana Highway 69
* Louisiana Highway 75
* Louisiana Highway 76
* Louisiana Highway 77

### Adjacent parishes

* Pointe Coupee Parish (northwest)
* West Baton Rouge Parish (north)
* East Baton Rouge Parish (northeast)
* Ascension Parish (east)
* Assumption Parish (southeast)
* Iberia Parish (south)
* St. Martin Parish (west)

### National protected area

* Atchafalaya National Wildlife Refuge (part)

## Communities
### Cities

* Plaquemine (parish seat)
* St. Gabriel (largest municipality)

### Towns

* Maringouin
* White Castle

### Villages

* Grosse Tete
* Rosedale

### Unincorporated areas
#### Census-designated places

* Bayou Goula
* Crescent
* Dorseyville (or Dorcyville)

#### Other unincorporated communities

* Alhambra
* Bayou Pigeon
* Bayou Sorrel
* Carville
* Iberville
* Indian Village
* Lone Star
* Ramah
* Seymourville

## Demographics

Iberville Parish, Louisiana – Racial and ethnic composition Note: the US census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race. :
| Race / Ethnicity (NH = Non-Hispanic) | Pop 2000 | Pop 2010 | Pop 2020 | % 2000 | % 2010 | % 2020 |
| White alone (NH) | 16,202 | 15,987 | 14,632 | 48.63% | 47.88% | 48.38% |
| Black or African American alone (NH) | 16,486 | 16,338 | 13,313 | 49.48% | 48.94% | 44.02% |
| Native American or Alaska Native alone (NH) | 58 | 61 | 58 | 0.17% | 0.18% | 0.19% |
| Asian alone (NH) | 84 | 101 | 123 | 0.25% | 0.30% | 0.41% |
| Pacific Islander alone (NH) | 4 | 2 | 13 | 0.01% | 0.01% | 0.04% |
| Other race alone (NH) | 11 | 8 | 75 | 0.03% | 0.02% | 0.25% |
| Mixed race or Multiracial (NH) | 132 | 226 | 609 | 0.40% | 0.68% | 2.01% |
| Hispanic or Latino (any race) | 343 | 664 | 1,418 | 1.03% | 1.99% | 4.69% |
| Total | 33,320 | 33,387 | 30,241 | 100.00% | 100.00% | 100.00% |
As of the 2020 United States census, there were 30,241 people, 10,903 households, and 7,372 families residing in the parish. The 2019 census-estimates determined 32,822 people lived in the parish, down from 33,387 at the 2010 United States census, and up from 33,320 at the 2000 U.S. census.
In 2020, the racial and ethnic makeup of the parish was 48.2% Black and African American, 49.6% non-Hispanic white, 0.1% American Indian and Alaska Native, 0.5% some other race, and 1.5% two or more races. Approximately 2.6% of the population were Hispanic and Latin American of any race. In 2010, its racial and ethnic makeup was 49.3% Black and African American, 48.8% non-Hispanic white, 0.3% Asian, 0.2% American Indian and Alaska Native, 0.6% some other race, and 0.8% from two or more races; 2.0% were Hispanic and Latin American of any race. At the 2000 census. 49.26% were non-Hispanic white, 49.7% African American, 0.18% American Indian and Alaska Native, 0.26% Asian, 0.01% Native Hawaiian and other Pacific Islander, 0.14% from other races, and 0.45% from two or more races; 1.03% were Hispanic and Latin American of any race.
There were 10,903 households at the 2019 census-estimates, and 13,396 housing units. Of the 2,697 businesses operating in the parish, 1,339 were minority-owned. The parish had an employment rate of 47.9%. There was a home-ownership rate of 73.4%, and the median housing value was $143,700; the median gross rent was $755. The median income for a household was $50,161; males had a median income of $54,655 versus $30,773 for females; 27.6% of the population lived at or below the poverty line.
Among its religious population in 2020, the Association of Religion Data Archives determined there were 1,700 non-denominational Protestants, and 7,901 Roman Catholics. Non-denominational Christianity was the largest non-Catholic demographic, reflecting the rise of non/inter-denominationalism.

## Government and infrastructure

The Louisiana Department of Public Safety and Corrections operates two prisons, Elayn Hunt Correctional Center and Louisiana Correctional Institute for Women (LCIW), in St. Gabriel in Iberville Parish. LCIW houses the female death row.
United States presidential election results for Iberville Parish, Louisiana :
| Year | Republican | Republican | Democratic | Democratic | Third party(ies) | Third party(ies) |
| Year | No. | % | No. | % | No. | % |
| 2024 | 7,616 | 49.60% | 7,503 | 48.87% | 235 | 1.53% |
| 2020 | 7,893 | 47.21% | 8,514 | 50.92% | 312 | 1.87% |
| 2016 | 7,320 | 45.63% | 8,324 | 51.89% | 399 | 2.49% |
| 2012 | 7,271 | 42.74% | 9,548 | 56.12% | 195 | 1.15% |
| 2008 | 7,185 | 43.75% | 9,023 | 54.95% | 213 | 1.30% |
| 2004 | 6,333 | 42.71% | 8,259 | 55.70% | 235 | 1.58% |
| 2000 | 5,573 | 38.43% | 8,355 | 57.61% | 575 | 3.96% |
| 1996 | 4,031 | 27.09% | 9,553 | 64.20% | 1,295 | 8.70% |
| 1992 | 5,211 | 33.42% | 8,218 | 52.70% | 2,165 | 13.88% |
| 1988 | 5,855 | 39.46% | 8,678 | 58.49% | 303 | 2.04% |
| 1984 | 6,455 | 42.58% | 8,587 | 56.65% | 117 | 0.77% |
| 1980 | 4,463 | 31.57% | 9,361 | 66.23% | 311 | 2.20% |
| 1976 | 3,822 | 33.56% | 7,254 | 63.69% | 313 | 2.75% |
| 1972 | 3,972 | 46.92% | 3,650 | 43.11% | 844 | 9.97% |
| 1968 | 1,413 | 14.44% | 4,084 | 41.73% | 4,290 | 43.83% |
| 1964 | 3,432 | 43.57% | 4,445 | 56.43% | 0 | 0.00% |
| 1960 | 1,000 | 15.85% | 4,558 | 72.25% | 751 | 11.90% |
| 1956 | 1,843 | 46.97% | 2,018 | 51.43% | 63 | 1.61% |
| 1952 | 1,710 | 32.84% | 3,497 | 67.16% | 0 | 0.00% |
| 1948 | 506 | 16.50% | 1,697 | 55.33% | 864 | 28.17% |
| 1944 | 432 | 16.02% | 2,265 | 83.98% | 0 | 0.00% |
| 1940 | 496 | 16.53% | 2,505 | 83.47% | 0 | 0.00% |
| 1936 | 263 | 11.87% | 1,953 | 88.13% | 0 | 0.00% |
| 1932 | 430 | 24.74% | 1,308 | 75.26% | 0 | 0.00% |
| 1928 | 278 | 14.57% | 1,630 | 85.43% | 0 | 0.00% |
| 1924 | 391 | 40.99% | 556 | 58.28% | 7 | 0.73% |
| 1920 | 465 | 54.71% | 385 | 45.29% | 0 | 0.00% |
| 1916 | 160 | 24.46% | 471 | 72.02% | 23 | 3.52% |
| 1912 | 100 | 13.57% | 487 | 66.08% | 150 | 20.35% |

## Education
### Primary and secondary schools

Iberville Parish School Board operates the public schools within all of Iberville Parish.

### Public libraries

Iberville Parish Library operates libraries in the parish. The Parish Headquarters Library is located in Plaquemine. Branches include Bayou Pigeon (Unincorporated area), Bayou Sorrel (Unincorporated area), East Iberville (St. Gabriel), Grosse Tete (Grosse Tete), Maringouin (Maringouin), Rosedale (Rosedale), White Castle (White Castle).

### Colleges and universities

It is in the service area of South Louisiana Community College.

## 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).