Iberville Parish is named for Pierre Le Moyne d’Iberville, who was an explorer and the brother of Jean-Baptiste Le Moyne de Bienville.
Surrounding Parish Courthouses:
N – Pointe Coupee Parish, West Baton Rouge Parish and East Baton Rouge Parish
E – Ascension Parish
S – Assumption Parish, Iberia Parish and Saint Martin Parish
Created: April 10, 1805 
Parish Seat:
Plaquemine 1805 – present
Old Parish Courthouse – Plaquemine
Location: 23640 Railroad Avenue / Meriam Street
Built: 1906 – 1907
Style: Renaissance Revival
Architect: Andrew J Bryan
Contractor: John Arthur
Description: The building faces east and is a three story buff colored brick and concrete structure. The buiding is located on landscaped grounds in the center of Plaquemine on the east side of the courthouse. The south front has a high portico with four columns rising to a pediment at the third story. There is a recessed balcony on the second story. A wide cornice runs between the second and third stories. The building has east and west wings. The roof is hipped. The large courtroom is located on the north side of the second story. The building is now the City Hall. The building was damaged by fire in 1945 and restored in 1946. The building was renovated in 1949.
Parish Courthouse – Plaquemine
Location: 58050 Meriam Street / Railroad Avenue
Built: 1981 – 1982
Style: Modern
Architect: Bradley-Miremont & Associates
Contractor: E C Shafer Construction Company Inc.
Description: The building faces south and is a three story buff colored brick and concrete structure. The building is located on landscaped grounds in the center of Plaquemine. A center wing extends south with the entrance at the north side with glass rising on the three story north section. The windows are horizontal. The roof line is flat. The interior has a large atrium along the south side with staircases ascending to the third story. The courtrooms are located on the third story. The building houses the District Court of the 18th Judicial District.
Old Parish Courthouse – Plaquemine
Location: 209 Main Street / Thesis Street
Built: 1848
Style: Greek Revival
Architect: George Weldon and Thomas Weldon.
Contractor: George Weldon and Thomas Weldon.
Description: The building faces north a is a one story white colored brick structure. The building is located on landscaped grounds in the center of Plaquemine to the east of the courthouse. The north front has a portico with four columns rising to a pediment at the roof line. The roof is hipped. The building is now the Iberville Museum. The building was renovated in 1936 and in 1985. The building served as the City Hall from 1906 to 1985.
See: National Register of Historic Places – Old Iberville Parish Courthouse
Old Parish Courthouse ( City Hall ) – Plaquemine
Parish Courthouse – Plaquemine
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Old Parish Courthouse – Plaquemine
Photos taken 2011, 2017 and 2019