ZIP Code 43545 — Napoleon, OH
43545 is a standard (street delivery) ZIP code serving Napoleon, Ohio, in Henry 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 43545 at a glance
| ZIP code | 43545 |
|---|---|
| Primary city | Napoleon |
| State | Ohio (OH) |
| County | Henry FIPS 39069 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 14,404 |
| Coordinates | 41.391630, -84.127190 |
How ZIP+4 works in 43545
The four digits after the hyphen encode a delivery segment inside 43545. 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 43545 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 43545.
| ZIP | City | Distance |
|---|---|---|
| 43555 | Ridgeville Corners, OH | 7.4 mi |
| 43523 | Grelton, OH | 7.6 mi |
| 43535 | Malinta, OH | 8 mi |
| 43532 | Liberty Center, OH | 9.2 mi |
| 43530 | Jewell, OH | 9.5 mi |
| 43527 | Holgate, OH | 9.8 mi |
| 43534 | Mcclure, OH | 10.6 mi |
| 43510 | Colton, OH | 10.6 mi |
| 43553 | Pettisville, OH | 10.8 mi |
| 43524 | Hamler, OH | 12.2 mi |
| 43567 | Wauseon, OH | 12.8 mi |
| 43502 | Archbold, OH | 13.2 mi |
Questions about 43545
What is the ZIP+4 code for 43545?
43545 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 43545, you need to look up a specific street address to get them.
What city is 43545?
43545 is assigned to Napoleon, Ohio, in Henry 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.