ZIP Code 43931 — Hannibal, OH
43931 is a standard (street delivery) ZIP code serving Hannibal, Ohio, in Monroe 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 43931 at a glance
| ZIP code | 43931 |
|---|---|
| Primary city | Hannibal |
| State | Ohio (OH) |
| County | Monroe FIPS 39111 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 178 |
| Coordinates | 39.672880, -80.871370 |
How ZIP+4 works in 43931
The four digits after the hyphen encode a delivery segment inside 43931. 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 43931 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 43931.
| ZIP | City | Distance |
|---|---|---|
| 43946 | Sardis, OH | 5.5 mi |
| 26159 | Paden City, WV | 5.6 mi |
| 43915 | Clarington, OH | 6 mi |
| 26155 | New Martinsville, WV | 6.2 mi |
| 26055 | Proctor, WV | 7.6 mi |
| 43914 | Cameron, OH | 8.3 mi |
| 26162 | Porters Falls, WV | 8.9 mi |
| 26175 | Sistersville, WV | 10.5 mi |
| 26167 | Reader, WV | 12.7 mi |
| 43793 | Woodsfield, OH | 13.2 mi |
| 43942 | Powhatan Point, OH | 13.2 mi |
| 43716 | Beallsville, OH | 13.4 mi |
Questions about 43931
What is the ZIP+4 code for 43931?
43931 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 43931, you need to look up a specific street address to get them.
What city is 43931?
43931 is assigned to Hannibal, Ohio, in Monroe 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.