ZIP Code 45864 — Miller City, OH
45864 is a standard (street delivery) ZIP code serving Miller City, Ohio, in Putnam 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 45864 at a glance
| ZIP code | 45864 |
|---|---|
| Primary city | Miller City |
| State | Ohio (OH) |
| County | Putnam FIPS 39137 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 225 |
| Coordinates | 41.099360, -84.140770 |
How ZIP+4 works in 45864
The four digits after the hyphen encode a delivery segment inside 45864. 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 45864 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 45864.
| ZIP | City | Distance |
|---|---|---|
| 45831 | Continental, OH | 5.7 mi |
| 45848 | Glandorf, OH | 6.2 mi |
| 43548 | New Bavaria, OH | 6.4 mi |
| 45875 | Ottawa, OH | 6.7 mi |
| 45856 | Leipsic, OH | 7.4 mi |
| 45853 | Kalida, OH | 8.3 mi |
| 43524 | Hamler, OH | 10.4 mi |
| 43527 | Holgate, OH | 10.5 mi |
| 45827 | Cloverdale, OH | 10.6 mi |
| 45815 | Belmore, OH | 11 mi |
| 45873 | Oakwood, OH | 13.4 mi |
| 45830 | Columbus Grove, OH | 13.6 mi |
Questions about 45864
What is the ZIP+4 code for 45864?
45864 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 45864, you need to look up a specific street address to get them.
What city is 45864?
45864 is assigned to Miller City, Ohio, in Putnam 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.