ZIP Code 71203 — Monroe, LA
71203 is a standard (street delivery) ZIP code serving Monroe, Louisiana, in Ouachita 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 71203 at a glance
| ZIP code | 71203 |
|---|---|
| Primary city | Monroe |
| State | Louisiana (LA) |
| County | Ouachita FIPS 22073 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 38,354 |
| Coordinates | 32.583980, -92.013510 |
How ZIP+4 works in 71203
The four digits after the hyphen encode a delivery segment inside 71203. 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 71203 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.
Other ZIP codes in Monroe
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 71203.
| ZIP | City | Distance |
|---|---|---|
| 71209 | Monroe, LA | 5 mi |
| 71212 | Monroe, LA | 5.2 mi |
| 71201 | Monroe, LA | 6.2 mi |
| 71229 | Collinston, LA | 7.9 mi |
| 71291 | West Monroe, LA | 9.9 mi |
| 71280 | Sterlington, LA | 11 mi |
| 71279 | Start, LA | 11.3 mi |
| 71202 | Monroe, LA | 13.2 mi |
| 71264 | Oak Ridge, LA | 14 mi |
| 71269 | Rayville, LA | 16.2 mi |
| 71292 | West Monroe, LA | 17.2 mi |
| 71234 | Downsville, LA | 19.4 mi |
Questions about 71203
What is the ZIP+4 code for 71203?
71203 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 71203, you need to look up a specific street address to get them.
What city is 71203?
71203 is assigned to Monroe, Louisiana, in Ouachita 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.