| City: | Duplessis, Louisiana |
| Parish: | Ascension Parish |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:59:49 AM |
| Population: | No Population Data |
| Area Code: | 225 |
| Classification: | PO Box |
| Coordinates: | 30.2697, -90.9384 |
| Quick Link: |
Duplessis is a small PO Box-only ZIP code serving a limited area along Highway 621 in Ascension Parish, Louisiana. The post office maintains 38 PO Boxes and provides delivery to 13 business locations. This is classified as a PO Box Only Zone, meaning there's no alternative mail delivery available in this area.
The ZIP code has a point location (not a defined territory) and sits within the larger 70737 ZIP code area. Mail delivery includes two city carrier routes serving addresses along Highway 621, which contains 31 delivery points organized into units. The facility also provides general delivery service for those without assigned addresses.
Duplessis is part of the Baton Rouge metropolitan area, with nearby neighborhoods including Shenandoah (4.9 miles away) and Airline/Jefferson (5.5 miles). The post office has operated under this ZIP code since before October 2004, when USPS began tracking introduction dates.
Use "Duplessis, LA 70728" for the city and state line. All mail in this ZIP code is delivered either to PO Boxes or to specific addresses along Highway 621.
Single street location along Highway 621 with multi-unit delivery addresses.
ZIP Code 70728 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 45Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 70728 is located in Ascension Parish, Louisiana, within the Baton Rouge, LA Metropolitan Statistical Area (CBSA 12940) and Louisiana's 6th Congressional District. This Metro area has a population of 802,484 people, about 0.00% of whom live in ZIP Code 70728. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Baton Rouge, LASource: Census |
| CBSA Number: | 12940Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 802,484Source: Census |
| MSA: | Baton Rouge, LA MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 06Source: USPS |
| Congressional Land Area: | 4033.89 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 70728 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.