Iberville Parish, LA ZIP codes
There are 9 ZIP codes in Iberville Parish, LA, in 8 towns, from 70721 to 70788. The largest are 70764 (Plaquemine), 70776 (Saint Gabriel) and 70788 (White Castle).
The parish seat is Plaquemine.
- ZIP codes
- 9
- Towns
- 8
- Parish seat
- Plaquemine
- County FIPS
22047- State
- Louisiana
- Population
- 29,815
- Median household income
- $54,000
- Land area
- 617 sq mi
- Area code
- 225
- Metro area
- Baton Rouge
Iberville Parish ZIP codes by town
- Plaquemine (parish seat)
- 70764, 70765
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Iberville Parish ZIP codes
The ZIP codes of Iberville Parish, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Iberville Parish in numbers
About 29,815 people live in Iberville Parish, in 11,296 households, the 34th most populous of Louisiana's 64 counties. The median household income is $54,000 a year, 11% below the Louisiana median of $60,756 (US: $80,734). The median owner-occupied home is valued at $172,800 (20% below the Louisiana median), and median gross rent is $827 a month. The median age is 40.4; 18.6% of adults 25 and over hold a bachelor's degree or higher (27.0% across Louisiana); the average commute takes 26 minutes.
| Population | 29,815 |
|---|---|
| Households | 11,296 |
| Median age | 40.4 |
| Median household income | $54,000 |
| Median home value | $172,800 |
| Median gross rent | $827 |
| Bachelor's degree or higher | 18.6% |
| Mean commute | 25.7 min |
| Population density | 48 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Iberville Parish
| Town | ZIP codes | Population |
|---|---|---|
| St. Gabriel | 1 | 6,639 |
| Plaquemine | 2 | 6,075 |
| White Castle | 1 | 2,237 |
| Rosedale | 1 | 1,034 |
| Maringouin | 1 | 752 |
| Sunshine | 1 | 487 |
| Carville | 1 | 447 |
| Grosse Tete | 1 | 293 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Iberville Parish.
Not sure you are in Iberville Parish? What county am I in? answers from your location, near a county line included.
Every ZIP code in Iberville Parish, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
70721 | Carville , LA | Standard | 447 | under $2,500 | $209,400 |
70740 | Grosse Tete , LA | Standard | 975 | $57,371 | $124,200 |
70757 | Maringouin , LA | Standard | 2,356 | $51,707 | $162,100 |
70764 | Plaquemine , LA | Standard | 14,757 | $55,352 | $164,200 |
70765 | Plaquemine , LA | No street area | — | — | — |
70772 | Rosedale , LA | Standard | 1,020 | — | $121,500 |
70776 | Saint Gabriel , LA | Standard | 7,100 | $96,843 | $391,700 |
70780 | Sunshine , LA | Standard | 487 | $88,878 | $254,000 |
70788 | White Castle , LA | Standard | 3,830 | $33,079 | $138,100 |
Cite this page
zipcodes.pro. “Iberville Parish ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/la/county/iberville
Underlying data is public domain or openly licensed — sources, vintages and licences.