ZIP Code 43123 — Grove City, OH
43123 is a standard (street delivery) ZIP code serving Grove City, Ohio, in Franklin 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 43123 at a glance
| ZIP code | 43123 |
|---|---|
| Primary city | Grove City |
| State | Ohio (OH) |
| County | Franklin FIPS 39049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 67,626 |
| Coordinates | 39.868010, -83.120880 |
How ZIP+4 works in 43123
The four digits after the hyphen encode a delivery segment inside 43123. 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 43123 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 43123.
| ZIP | City | Distance |
|---|---|---|
| 43126 | Harrisburg, OH | 4.7 mi |
| 43223 | Columbus, OH | 6.1 mi |
| 43119 | Galloway, OH | 6.3 mi |
| 43228 | Columbus, OH | 6.6 mi |
| 43146 | Orient, OH | 6.7 mi |
| 43204 | Columbus, OH | 6.8 mi |
| 43116 | Commercial Point, OH | 7.3 mi |
| 43222 | Columbus, OH | 7.8 mi |
| 43117 | Derby, OH | 8.2 mi |
| 43137 | Lockbourne, OH | 8.3 mi |
| 43207 | Columbus, OH | 8.5 mi |
| 43215 | Columbus, OH | 8.9 mi |
Questions about 43123
What is the ZIP+4 code for 43123?
43123 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 43123, you need to look up a specific street address to get them.
What city is 43123?
43123 is assigned to Grove City, Ohio, in Franklin 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.