ZIP Code 31791 — Sylvester, GA
31791 is a standard (street delivery) ZIP code serving Sylvester, Georgia, in Worth 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 31791 at a glance
| ZIP code | 31791 |
|---|---|
| Primary city | Sylvester |
| State | Georgia (GA) |
| County | Worth FIPS 13321 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 11,255 |
| Coordinates | 31.533830, -83.878330 |
How ZIP+4 works in 31791
The four digits after the hyphen encode a delivery segment inside 31791. 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 31791 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 31791.
| ZIP | City | Distance |
|---|---|---|
| 31781 | Poulan, GA | 5.3 mi |
| 31789 | Sumner, GA | 9.4 mi |
| 31705 | Albany, GA | 10.4 mi |
| 31704 | Albany, GA | 10.5 mi |
| 31795 | Ty Ty, GA | 12.5 mi |
| 31744 | Doerun, GA | 13.7 mi |
| 31772 | Oakfield, GA | 14 mi |
| 31796 | Warwick, GA | 16.5 mi |
| 31701 | Albany, GA | 16.5 mi |
| 31714 | Ashburn, GA | 17.1 mi |
| 31793 | Tifton, GA | 18 mi |
| 31716 | Baconton, GA | 18.1 mi |
Questions about 31791
What is the ZIP+4 code for 31791?
31791 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 31791, you need to look up a specific street address to get them.
What city is 31791?
31791 is assigned to Sylvester, Georgia, in Worth 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.