ZIP Code 43112 — Carroll, OH
43112 is a standard (street delivery) ZIP code serving Carroll, Ohio, in Fairfield 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 43112 at a glance
| ZIP code | 43112 |
|---|---|
| Primary city | Carroll |
| State | Ohio (OH) |
| County | Fairfield FIPS 39045 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,909 |
| Coordinates | 39.797190, -82.704720 |
How ZIP+4 works in 43112
The four digits after the hyphen encode a delivery segment inside 43112. 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 43112 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 43112.
| ZIP | City | Distance |
|---|---|---|
| 43110 | Canal Winchester, OH | 5.6 mi |
| 43136 | Lithopolis, OH | 5.9 mi |
| 43105 | Baltimore, OH | 6.6 mi |
| 43147 | Pickerington, OH | 7.2 mi |
| 43130 | Lancaster, OH | 8.4 mi |
| 43157 | Thurston, OH | 9 mi |
| 43125 | Groveport, OH | 10 mi |
| 43109 | Brice, OH | 10.5 mi |
| 43018 | Etna, OH | 10.9 mi |
| 43148 | Pleasantville, OH | 11 mi |
| 43102 | Amanda, OH | 11.2 mi |
| 43046 | Millersport, OH | 11.3 mi |
Questions about 43112
What is the ZIP+4 code for 43112?
43112 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 43112, you need to look up a specific street address to get them.
What city is 43112?
43112 is assigned to Carroll, Ohio, in Fairfield 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.