ZIP Code 43311 — Bellefontaine, OH
43311 is a standard (street delivery) ZIP code serving Bellefontaine, Ohio, in Logan 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 43311 at a glance
| ZIP code | 43311 |
|---|---|
| Primary city | Bellefontaine |
| State | Ohio (OH) |
| County | Logan FIPS 39091 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 20,391 |
| Coordinates | 40.364270, -83.758120 |
How ZIP+4 works in 43311
The four digits after the hyphen encode a delivery segment inside 43311. 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 43311 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 43311.
| ZIP | City | Distance |
|---|---|---|
| 43324 | Huntsville, OH | 6.3 mi |
| 43360 | Zanesfield, OH | 7 mi |
| 43357 | West Liberty, OH | 7.7 mi |
| 43318 | De Graff, OH | 9 mi |
| 43347 | Rushsylvania, OH | 9.4 mi |
| 43348 | Russells Point, OH | 9.9 mi |
| 43319 | East Liberty, OH | 10.3 mi |
| 43333 | Lewistown, OH | 10.5 mi |
| 43336 | Middleburg, OH | 11.1 mi |
| 43310 | Belle Center, OH | 11.8 mi |
| 43343 | Quincy, OH | 12.1 mi |
| 43358 | West Mansfield, OH | 12.5 mi |
Questions about 43311
What is the ZIP+4 code for 43311?
43311 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 43311, you need to look up a specific street address to get them.
What city is 43311?
43311 is assigned to Bellefontaine, Ohio, in Logan 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.