ZIP Code 30257 — Milner, GA
30257 is a standard (street delivery) ZIP code serving Milner, Georgia, in Lamar 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 30257 at a glance
| ZIP code | 30257 |
|---|---|
| Primary city | Milner |
| State | Georgia (GA) |
| County | Lamar FIPS 13171 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,588 |
| Coordinates | 33.142180, -84.186060 |
How ZIP+4 works in 30257
The four digits after the hyphen encode a delivery segment inside 30257. 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 30257 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 30257.
| ZIP | City | Distance |
|---|---|---|
| 30224 | Griffin, GA | 5.2 mi |
| 30204 | Barnesville, GA | 6.8 mi |
| 30295 | Zebulon, GA | 8.3 mi |
| 30223 | Griffin, GA | 11.3 mi |
| 30256 | Meansville, GA | 11.4 mi |
| 30285 | The Rock, GA | 11.4 mi |
| 30292 | Williamson, GA | 12.2 mi |
| 30284 | Sunny Side, GA | 14.9 mi |
| 30248 | Locust Grove, GA | 15 mi |
| 30234 | Jenkinsburg, GA | 15.9 mi |
| 30233 | Jackson, GA | 16.1 mi |
| 30206 | Concord, GA | 16.3 mi |
Questions about 30257
What is the ZIP+4 code for 30257?
30257 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 30257, you need to look up a specific street address to get them.
What city is 30257?
30257 is assigned to Milner, Georgia, in Lamar 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.