ZIP Code 43221 — Columbus, OH
43221 is a standard (street delivery) ZIP code serving Columbus, 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 43221 at a glance
| ZIP code | 43221 |
|---|---|
| Primary city | Columbus |
| State | Ohio (OH) |
| County | Franklin FIPS 39049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 35,293 |
| Coordinates | 40.023340, -83.077440 |
How ZIP+4 works in 43221
The four digits after the hyphen encode a delivery segment inside 43221. 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 43221 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 43221.
| ZIP | City | Distance |
|---|---|---|
| 43220 | Columbus, OH | 1.8 mi |
| 43212 | Columbus, OH | 3.1 mi |
| 43210 | Columbus, OH | 3.2 mi |
| 43202 | Columbus, OH | 3.4 mi |
| 43214 | Columbus, OH | 3.6 mi |
| 43204 | Columbus, OH | 4.3 mi |
| 43201 | Columbus, OH | 4.6 mi |
| 43228 | Columbus, OH | 4.8 mi |
| 43222 | Columbus, OH | 4.8 mi |
| 43215 | Columbus, OH | 5.2 mi |
| 43211 | Columbus, OH | 5.6 mi |
| 43002 | Amlin, OH | 5.6 mi |
Questions about 43221
What is the ZIP+4 code for 43221?
43221 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 43221, you need to look up a specific street address to get them.
What city is 43221?
43221 is assigned to Columbus, 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.