ZIP CodesZIP codes in Assumption Parish, Louisiana
Assumption Parish, Louisiana has 6 ZIP codes in this list, from 70339 to 70393. They cover 6 places, among them Pierre Part, Belle Rose, Labadieville and Napoleonville.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 70339 | Pierre Part | 55.1 | 29.948, -91.189 |
| 70341 | Belle Rose | 45.1 | 30.026, -91.044 |
| 70372 | Labadieville | 28.8 | 29.834, -90.961 |
| 70390 | Napoleonville | 148 | 29.929, -91.027 |
| 70391 | Paincourtville | 0.5 | 29.990, -91.059 |
| 70393 | Plattenville | 5.5 | 29.997, -91.023 |
The ZIP code areas of Assumption Parish add up to about 283 square miles of land (732 sq km) as the Census Bureau draws them. The largest is 70390 (Napoleonville), with 148 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Pierre Part, LA 70339.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.