ZIP Code 30345 — Atlanta, GA
30345 is a standard (street delivery) ZIP code serving Atlanta, Georgia, in DeKalb 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 30345 at a glance
| ZIP code | 30345 |
|---|---|
| Primary city | Atlanta |
| State | Georgia (GA) |
| County | DeKalb FIPS 13089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 24,492 |
| Coordinates | 33.850820, -84.283170 |
How ZIP+4 works in 30345
The four digits after the hyphen encode a delivery segment inside 30345. 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 30345 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 Atlanta
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 30345.
| ZIP | City | Distance |
|---|---|---|
| 30341 | Atlanta, GA | 2.5 mi |
| 30033 | Decatur, GA | 2.6 mi |
| 30329 | Atlanta, GA | 2.8 mi |
| 30319 | Atlanta, GA | 3.6 mi |
| 30340 | Atlanta, GA | 3.7 mi |
| 30084 | Tucker, GA | 3.8 mi |
| 30021 | Clarkston, GA | 3.9 mi |
| 30079 | Scottdale, GA | 4.3 mi |
| 30322 | Atlanta, GA | 4.6 mi |
| 30326 | Atlanta, GA | 4.6 mi |
| 30324 | Atlanta, GA | 4.8 mi |
| 30002 | Avondale Estates, GA | 5.5 mi |
Questions about 30345
What is the ZIP+4 code for 30345?
30345 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 30345, you need to look up a specific street address to get them.
What city is 30345?
30345 is assigned to Atlanta, Georgia, in DeKalb 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.