| ZIP Codes: | 9 ZIP Codes (8 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 225 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:42 PM |
| Population: | 30,972 [See All] |
| FIPS: | 22047 |
| CBSA: | Baton Rouge, LA |
| Land Area: | 776 sq mi |
| Water Area: | 33 sq mi |
| Coordinates: | 30.2852, -91.2931 |
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30,972 residents live across 9 ZIPs covering 776 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 34,799 to 30,972 from 2014 to 2024 — a -11.0% change. 2 ZIPs gained residents, 6 lost.
The parish's wealthiest ZIP 70776 (Saint Gabriel, $96,843 median) and poorest ZIP 70721 (Carville, $2,499) are 2.3 miles apart — a 38.8× income gap across local geography.
Median home values vary 3.2× across this parish — from $121,500 in 70772 (Rosedale) to $391,700 in 70776 (Saint Gabriel).
Density varies 27× across the parish — from 7 people/sq mi in 70740 (Grosse Tete) to 183 in 70776 (Saint Gabriel).
Educational attainment ranges from 7.2% bachelor's+ in 70740 (Grosse Tete) to 29.9% in 70776 (Saint Gabriel) — the breadth of educational profiles across the area.
Within Louisiana, this is the #33 most populous of 64 parishes and ranks #31 for median household income .
Weighted by population, the typical household earns about $61,875 across the parish — reflecting what a typical resident sees, not a simple ZIP average.
18.6% of adults age 25+ hold a bachelor's degree or higher (4,121 of 22,101 reporting).
8 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this parish.
Median household income spans 38.8× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier parish — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Iberville Parish lost 11.0% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 70764 | Plaquemine | Standard | 14,757 | $55,352 | 346.0 | -15.6% |
| 70776 | Saint Gabriel | Standard | 7,100 | $96,843 | 38.8 | 21.9% |
| 70788 | White Castle | Standard | 3,830 | $33,079 | 127.4 | -4.2% |
| 70757 | Maringouin | Standard | 2,356 | $51,707 | 83.0 | -26.3% |
| 70772 | Rosedale | Standard | 1,020 | — | 12.4 | 13.5% |
| 70740 | Grosse Tete | Standard | 975 | $57,371 | 146.3 | -28.0% |
| 70780 | Sunshine | Standard | 487 | $88,878 | 16.8 | -58.7% |
| 70721 | Carville | Standard | 447 | $2,499 | 5.2 | -47.8% |
| 70765 | Plaquemine | PO Box | — | — | 0.0 | — |