ZIP Code 43240 — Columbus, OH
43240 is a standard (street delivery) ZIP code serving Columbus, Ohio, in Delaware 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 43240 at a glance
| ZIP code | 43240 |
|---|---|
| Primary city | Columbus |
| State | Ohio (OH) |
| County | Delaware FIPS 39041 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 7,679 |
| Coordinates | 40.145010, -82.982090 |
How ZIP+4 works in 43240
The four digits after the hyphen encode a delivery segment inside 43240. 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 43240 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 Columbus
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 43240.
| ZIP | City | Distance |
|---|---|---|
| 43035 | Lewis Center, OH | 2.9 mi |
| 43085 | Columbus, OH | 3.6 mi |
| 43229 | Columbus, OH | 4.1 mi |
| 43235 | Columbus, OH | 4.8 mi |
| 43231 | Columbus, OH | 5.1 mi |
| 43082 | Westerville, OH | 5.2 mi |
| 43081 | Westerville, OH | 5.4 mi |
| 43065 | Powell, OH | 6.3 mi |
| 43021 | Galena, OH | 6.5 mi |
| 43214 | Columbus, OH | 6.7 mi |
| 43224 | Columbus, OH | 7.1 mi |
| 43220 | Columbus, OH | 8.2 mi |
Questions about 43240
What is the ZIP+4 code for 43240?
43240 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 43240, you need to look up a specific street address to get them.
What city is 43240?
43240 is assigned to Columbus, Ohio, in Delaware 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.