Parish · code 22047
Iberville ParishLouisiana
Iberville Parish is a parish in Louisiana with its seat in Plaquemine, formed in 1807 as a civil division.
- Founded1805
- County seatPlaquemine
- Named forPierre Le Moyne d'Iberville
- Land area619 sq mi + 34 sq mi water
- Population30,241 2020 Census
- Parcels mapped17,469 checked 15 October 2026
Where it is
Iberville on the map of Louisiana
Louisiana has 64 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Founded in 1805
An old deed may name a county that no longer exists, or a boundary that has since moved.
Iberville Parish was created on April 14, 1807, as one of nineteen civil parishes that reused earlier ecclesiastical boundaries within Iberville County, which had been established on April 10, 1805. The parish was named after Pierre Le Moyne d'Iberville. Its boundaries were adjusted multiple times through exchanges and gains from neighboring parishes including West Baton Rouge, Ascension, Pointe Coupee, and St. Martin between 1824 and 1861.
- 1807Iberville Parish created Iberville Parish created within Iberville County. The nineteen parishes created on 14 April 1807 were civil divisions which reused the earlier ecclesiastical boundaries and names. The division into civil parishes did not abolish the twelve counties established on 10 April 1805. This and subsequent laws set up a dual system in which the counties existed "for the purpose of making the election of the representatives of the territory, and levying the territorial taxes", while the parishes took over jurisdiction of all civil, criminal, probate and other judicial matters. The dual county / parish system remained in effect until the state constitution of 1845. Though there was no legislative act formally abolishing the old counties, the 1845 constitution dropped all reference to the county as a civil or legislative division and redefined the limits of parish autonomy and authority. · Orleans Terr. Acts 1807, 1st. Leg., 2nd sess., ch. 1, sec. 9/ p. 12; Calhoun, 85-93
- 1826Exchanged territory Iberville exchanged with West Baton Rouge when southern and western boundaries of West Baton Rouge defined. This law is the first concrete definition for the line between the two parishes. Previously mapped line was derived from contemporaneous maps of parish boundaries. · La. Acts 1825, 7th Leg., 2nd sess., pp. 186-188
- 1827Gained territory Iberville gained from West Baton Rouge. · La. Acts 1827, 8th Leg., 1st sess., pp. 178-180
- 1837Gained territory Iberville gained from Pointe Coupee. · La. Acts 1835, 13th Leg., 1st sess., pp. 22-23
- 1841Lost territory Iberville lost to Ascension. · La. Acts 1841, 15th Leg., 1st sess., p. 7
Show all 12 changes
- 1807Iberville Parish created Iberville Parish created within Iberville County. The nineteen parishes created on 14 April 1807 were civil divisions which reused the earlier ecclesiastical boundaries and names. The division into civil parishes did not abolish the twelve counties established on 10 April 1805. This and subsequent laws set up a dual system in which the counties existed "for the purpose of making the election of the representatives of the territory, and levying the territorial taxes", while the parishes took over jurisdiction of all civil, criminal, probate and other judicial matters. The dual county / parish system remained in effect until the state constitution of 1845. Though there was no legislative act formally abolishing the old counties, the 1845 constitution dropped all reference to the county as a civil or legislative division and redefined the limits of parish autonomy and authority. · Orleans Terr. Acts 1807, 1st. Leg., 2nd sess., ch. 1, sec. 9/ p. 12; Calhoun, 85-93
- 1824Changed Surveyor appointed to run the boundary line between Iberville and Ascension and to determine the limits of said parishes. · La. Acts 1824, 6th Leg., 2nd sess., p. 140; HRS, 39
- 1826Exchanged territory Iberville exchanged with West Baton Rouge when southern and western boundaries of West Baton Rouge defined. This law is the first concrete definition for the line between the two parishes. Previously mapped line was derived from contemporaneous maps of parish boundaries. · La. Acts 1825, 7th Leg., 2nd sess., pp. 186-188
- 1827Gained territory Iberville gained from West Baton Rouge. · La. Acts 1827, 8th Leg., 1st sess., pp. 178-180
- 1828Changed Iberville / West Baton Rouge line defined (no change). · La. Acts 1828, 8th Leg., 2nd sess., p. 92
- 1837Gained territory Iberville gained from Pointe Coupee. · La. Acts 1835, 13th Leg., 1st sess., pp. 22-23
- 1841Lost territory Iberville lost to Ascension. · La. Acts 1841, 15th Leg., 1st sess., p. 7
- 1847Exchanged territory Iberville exchanged with St. Martin. · La. Acts 1847, 1st Leg., 2nd sess., pp. 95-96
- c. 1850
- 1859Lost territory Iberville lost to Pointe Coupee. · La. Acts 1859, 4th Leg. 2nd sess., pp. 16-17
- 1859Gained territory Iberville gained from Pointe Coupee when boundary was adjusted to run along the upper line of the Barrow plantation. · La. Acts 1859, 4th Leg., 2nd sess., p. 59; Lemmon, Magill and Wiese, p. 202
- 1861Lost territory Iberville lost to Pointe Coupee when law of 14 March 1859 was repealed and the Barrow plantation declared to be within Pointe Coupee. · La. Acts 1861, 5th Leg., 2nd sess., p. 19
Land and parcels
What the maps cover in Iberville
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 17,469 parcels from Iberville Parish. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 15 June 2026 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Iberville Parish yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Iberville by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Permits
Zoning and code
County government
- County government
The official website of Iberville Parish.
See your own lot on these maps
Open Iberville Parish on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Iberville Parish
- When was Iberville Parish founded?
- Iberville Parish was founded in 1805, and named after Pierre Le Moyne d'Iberville.
- What is the county seat of Iberville Parish?
- The county seat of Iberville Parish is Plaquemine.
- Is there an online parcel map for Iberville Parish?
- Yes. Iberville Parish publishes a parcel map of 17,469 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Iberville Parish's boundary or name changed?
- Iberville Parish was created in 1807. Since then the Atlas of Historical County Boundaries records 10 later changes, chiefly involving Pointe Coupee Parish, Ascension Parish and West Baton Rouge Parish.
- Who issues building permits in Iberville Parish?
- The county's page on building permits: Permits & Inspections. Inside a city or town, ask that city first.
- Is my lot in a flood zone?
- We do not have flood maps for Iberville Parish yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby