ZIP Code 45897 — Williamstown, OH
45897 is a standard (street delivery) ZIP code serving Williamstown, Ohio, in Hancock 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 45897 at a glance
| ZIP code | 45897 |
|---|---|
| Primary city | Williamstown |
| State | Ohio (OH) |
| County | Hancock FIPS 39063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 115 |
| Coordinates | 40.834340, -83.656760 |
How ZIP+4 works in 45897
The four digits after the hyphen encode a delivery segment inside 45897. 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 45897 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 45897.
| ZIP | City | Distance |
|---|---|---|
| 45836 | Dunkirk, OH | 2.9 mi |
| 45814 | Arlington, OH | 5.1 mi |
| 45841 | Jenera, OH | 5.1 mi |
| 45835 | Dola, OH | 5.7 mi |
| 45843 | Forest, OH | 7.3 mi |
| 45867 | Mount Blanchard, OH | 7.6 mi |
| 45810 | Ada, OH | 9 mi |
| 45881 | Rawson, OH | 10.1 mi |
| 43359 | Wharton, OH | 10.9 mi |
| 45859 | Mcguffey, OH | 11.8 mi |
| 45817 | Bluffton, OH | 12.2 mi |
| 43330 | Kirby, OH | 12.5 mi |
Questions about 45897
What is the ZIP+4 code for 45897?
45897 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 45897, you need to look up a specific street address to get them.
What city is 45897?
45897 is assigned to Williamstown, Ohio, in Hancock 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.