ZIP Code 70450 — Mount Hermon, LA
70450 is a standard (street delivery) ZIP code serving Mount Hermon, Louisiana, in Washington County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 70450 at a glance
| ZIP code | 70450 |
|---|---|
| Primary city | Mount Hermon |
| State | Louisiana (LA) |
| County | Washington FIPS 22117 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,921 |
| Coordinates | 30.936670, -90.267550 |
How ZIP+4 works in 70450
The four digits after the hyphen encode a delivery segment inside 70450. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 70450 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 70450.
| ZIP | City | Distance |
|---|---|---|
| 70438 | Franklinton, LA | 11.3 mi |
| 70444 | Kentwood, LA | 13.1 mi |
| 70465 | Tangipahoa, LA | 15.2 mi |
| 39657 | Osyka, MS | 15.3 mi |
| 39667 | Tylertown, MS | 15.7 mi |
| 70442 | Husser, LA | 16.6 mi |
| 39652 | Magnolia, MS | 16.8 mi |
| 70456 | Roseland, LA | 17.3 mi |
| 70436 | Fluker, LA | 17.3 mi |
| 39648 | Mccomb, MS | 18.6 mi |
| 70422 | Amite, LA | 19.1 mi |
| 39635 | Fernwood, MS | 20.2 mi |
Questions about 70450
What is the ZIP+4 code for 70450?
70450 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 70450, you need to look up a specific street address to get them.
What city is 70450?
70450 is assigned to Mount Hermon, Louisiana, in Washington County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.