ZIP Code 30111 — Clarkdale, GA
30111 is a standard (street delivery) ZIP code serving Clarkdale, Georgia, in Cobb 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 30111 at a glance
| ZIP code | 30111 |
|---|---|
| Primary city | Clarkdale |
| State | Georgia (GA) |
| County | Cobb FIPS 13067 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Coordinates | 33.831800, -84.654990 |
How ZIP+4 works in 30111
The four digits after the hyphen encode a delivery segment inside 30111. 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 30111 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 30111.
| ZIP | City | Distance |
|---|---|---|
| 30106 | Austell, GA | 1.5 mi |
| 30127 | Powder Springs, GA | 3.9 mi |
| 30122 | Lithia Springs, GA | 4.8 mi |
| 30168 | Austell, GA | 5.1 mi |
| 30008 | Marietta, GA | 5.9 mi |
| 30126 | Mableton, GA | 6 mi |
| 30082 | Smyrna, GA | 6.9 mi |
| 30141 | Hiram, GA | 7.2 mi |
| 30064 | Marietta, GA | 7.7 mi |
| 30336 | Atlanta, GA | 8.2 mi |
| 30134 | Douglasville, GA | 8.3 mi |
| 30060 | Marietta, GA | 8.9 mi |
Questions about 30111
What is the ZIP+4 code for 30111?
30111 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 30111, you need to look up a specific street address to get them.
What city is 30111?
30111 is assigned to Clarkdale, Georgia, in Cobb 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.