ZIP Code 43431 — Gibsonburg, OH
43431 is a standard (street delivery) ZIP code serving Gibsonburg, Ohio, in Sandusky 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 43431 at a glance
| ZIP code | 43431 |
|---|---|
| Primary city | Gibsonburg |
| State | Ohio (OH) |
| County | Sandusky FIPS 39143 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,609 |
| Coordinates | 41.389980, -83.339640 |
How ZIP+4 works in 43431
The four digits after the hyphen encode a delivery segment inside 43431. 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 43431 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 43431.
| ZIP | City | Distance |
|---|---|---|
| 43435 | Helena, OH | 4.6 mi |
| 43469 | Woodville, OH | 5 mi |
| 43406 | Bradner, OH | 6.3 mi |
| 43442 | Lindsey, OH | 7 mi |
| 43416 | Elmore, OH | 7.5 mi |
| 43450 | Pemberville, OH | 8 mi |
| 43443 | Luckey, OH | 8.3 mi |
| 43407 | Burgoon, OH | 9.1 mi |
| 43430 | Genoa, OH | 9.4 mi |
| 43457 | Risingsun, OH | 9.5 mi |
| 44841 | Kansas, OH | 9.7 mi |
| 44815 | Bettsville, OH | 11.1 mi |
Questions about 43431
What is the ZIP+4 code for 43431?
43431 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 43431, you need to look up a specific street address to get them.
What city is 43431?
43431 is assigned to Gibsonburg, Ohio, in Sandusky 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.