ZIP Code 51345 — Harris, IA
51345 is a standard (street delivery) ZIP code serving Harris, Iowa, in Osceola 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 51345 at a glance
| ZIP code | 51345 |
|---|---|
| Primary city | Harris |
| State | Iowa (IA) |
| County | Osceola FIPS 19143 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 347 |
| Coordinates | 43.418100, -95.432090 |
How ZIP+4 works in 51345
The four digits after the hyphen encode a delivery segment inside 51345. 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 51345 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 51345.
| ZIP | City | Distance |
|---|---|---|
| 51354 | Ocheyedan, IA | 5.6 mi |
| 51347 | Lake Park, IA | 6 mi |
| 56167 | Round Lake, MN | 9.3 mi |
| 51350 | Melvin, IA | 11.3 mi |
| 51351 | Milford, IA | 14.2 mi |
| 51355 | Okoboji, IA | 14.7 mi |
| 56117 | Bigelow, MN | 14.8 mi |
| 51249 | Sibley, IA | 15 mi |
| 51338 | Everly, IA | 15.6 mi |
| 51331 | Arnolds Park, IA | 15.6 mi |
| 51346 | Hartley, IA | 16 mi |
| 56187 | Worthington, MN | 16.1 mi |
Questions about 51345
What is the ZIP+4 code for 51345?
51345 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 51345, you need to look up a specific street address to get them.
What city is 51345?
51345 is assigned to Harris, Iowa, in Osceola 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.