ZIP Code 31021 — Dublin, GA
31021 is a standard (street delivery) ZIP code serving Dublin, Georgia, in Laurens 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 31021 at a glance
| ZIP code | 31021 |
|---|---|
| Primary city | Dublin |
| State | Georgia (GA) |
| County | Laurens FIPS 13175 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 28,190 |
| Coordinates | 32.490020, -82.934350 |
How ZIP+4 works in 31021
The four digits after the hyphen encode a delivery segment inside 31021. 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 31021 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 31021.
| ZIP | City | Distance |
|---|---|---|
| 31019 | Dexter, GA | 8.2 mi |
| 31027 | East Dublin, GA | 8.8 mi |
| 31075 | Rentz, GA | 9.4 mi |
| 31022 | Dudley, GA | 10.3 mi |
| 30454 | Rockledge, GA | 12.2 mi |
| 31065 | Montrose, GA | 14.4 mi |
| 31009 | Cadwell, GA | 15.3 mi |
| 31012 | Chester, GA | 15.6 mi |
| 31003 | Allentown, GA | 18.3 mi |
| 31017 | Danville, GA | 19.6 mi |
| 31002 | Adrian, GA | 20.4 mi |
| 31096 | Wrightsville, GA | 20.6 mi |
Questions about 31021
What is the ZIP+4 code for 31021?
31021 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 31021, you need to look up a specific street address to get them.
What city is 31021?
31021 is assigned to Dublin, Georgia, in Laurens 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.