ZIP Code 31312 — Guyton, GA
31312 is a standard (street delivery) ZIP code serving Guyton, Georgia, in Effingham 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 31312 at a glance
| ZIP code | 31312 |
|---|---|
| Primary city | Guyton |
| State | Georgia (GA) |
| County | Effingham FIPS 13103 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 25,991 |
| Coordinates | 32.321100, -81.401260 |
How ZIP+4 works in 31312
The four digits after the hyphen encode a delivery segment inside 31312. 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 31312 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 31312.
| ZIP | City | Distance |
|---|---|---|
| 31329 | Springfield, GA | 7.9 mi |
| 31307 | Eden, GA | 9.8 mi |
| 31326 | Rincon, GA | 10.2 mi |
| 31308 | Ellabell, GA | 11 mi |
| 30415 | Brooklet, GA | 11.6 mi |
| 31318 | Meldrim, GA | 12.9 mi |
| 31303 | Clyo, GA | 13.3 mi |
| 31302 | Bloomingdale, GA | 13.9 mi |
| 31407 | Port Wentworth, GA | 15.2 mi |
| 30449 | Oliver, GA | 15.8 mi |
| 30446 | Newington, GA | 16.9 mi |
| 31322 | Pooler, GA | 17.3 mi |
Questions about 31312
What is the ZIP+4 code for 31312?
31312 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 31312, you need to look up a specific street address to get them.
What city is 31312?
31312 is assigned to Guyton, Georgia, in Effingham 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.