ZIP Code 45778 — Stewart, OH
45778 is a standard (street delivery) ZIP code serving Stewart, Ohio, in Athens 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 45778 at a glance
| ZIP code | 45778 |
|---|---|
| Primary city | Stewart |
| State | Ohio (OH) |
| County | Athens FIPS 39009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,144 |
| Coordinates | 39.346720, -81.895550 |
How ZIP+4 works in 45778
The four digits after the hyphen encode a delivery segment inside 45778. 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 45778 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 45778.
| ZIP | City | Distance |
|---|---|---|
| 45711 | Amesville, OH | 5.7 mi |
| 45724 | Cutler, OH | 6 mi |
| 45735 | Guysville, OH | 6.7 mi |
| 45723 | Coolville, OH | 9.4 mi |
| 45742 | Little Hocking, OH | 9.8 mi |
| 43728 | Chesterhill, OH | 10 mi |
| 45701 | Athens, OH | 10.2 mi |
| 45784 | Vincent, OH | 11.4 mi |
| 45761 | Millfield, OH | 12 mi |
| 45783 | Tuppers Plains, OH | 12.2 mi |
| 45780 | The Plains, OH | 12.7 mi |
| 45776 | Shade, OH | 12.9 mi |
Questions about 45778
What is the ZIP+4 code for 45778?
45778 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 45778, you need to look up a specific street address to get them.
What city is 45778?
45778 is assigned to Stewart, Ohio, in Athens 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.