ZIP Code 30121 — Cartersville, GA
30121 is a standard (street delivery) ZIP code serving Cartersville, Georgia, in Bartow 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 30121 at a glance
| ZIP code | 30121 |
|---|---|
| Primary city | Cartersville |
| State | Georgia (GA) |
| County | Bartow FIPS 13015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 25,989 |
| Coordinates | 34.210730, -84.778020 |
How ZIP+4 works in 30121
The four digits after the hyphen encode a delivery segment inside 30121. 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 30121 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 Cartersville
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 30121.
| ZIP | City | Distance |
|---|---|---|
| 30184 | White, GA | 4.9 mi |
| 30120 | Cartersville, GA | 5.4 mi |
| 30137 | Emerson, GA | 6.5 mi |
| 30102 | Acworth, GA | 10.3 mi |
| 30171 | Rydal, GA | 10.7 mi |
| 30145 | Kingston, GA | 11.8 mi |
| 30101 | Acworth, GA | 12.1 mi |
| 30189 | Woodstock, GA | 13.1 mi |
| 30103 | Adairsville, GA | 13.4 mi |
| 30178 | Taylorsville, GA | 13.5 mi |
| 30183 | Waleska, GA | 13.6 mi |
| 30114 | Canton, GA | 13.8 mi |
Questions about 30121
What is the ZIP+4 code for 30121?
30121 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 30121, you need to look up a specific street address to get them.
What city is 30121?
30121 is assigned to Cartersville, Georgia, in Bartow 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.