ZIP Code 51358 — Ruthven, IA
51358 is a standard (street delivery) ZIP code serving Ruthven, Iowa, in Palo Alto 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 51358 at a glance
| ZIP code | 51358 |
|---|---|
| Primary city | Ruthven |
| State | Iowa (IA) |
| County | Palo Alto FIPS 19147 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,213 |
| Coordinates | 43.130330, -94.895790 |
How ZIP+4 works in 51358
The four digits after the hyphen encode a delivery segment inside 51358. 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 51358 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 51358.
| ZIP | City | Distance |
|---|---|---|
| 51333 | Dickens, IA | 5.5 mi |
| 50515 | Ayrshire, IA | 7.7 mi |
| 50536 | Emmetsburg, IA | 10.1 mi |
| 51341 | Gillett Grove, IA | 10.7 mi |
| 51342 | Graettinger, IA | 11.1 mi |
| 51364 | Terril, IA | 12.1 mi |
| 50527 | Curlew, IA | 12.3 mi |
| 51301 | Spencer, IA | 12.9 mi |
| 51366 | Webb, IA | 13.1 mi |
| 51343 | Greenville, IA | 13.5 mi |
| 51365 | Wallingford, IA | 14.6 mi |
| 51340 | Fostoria, IA | 15.2 mi |
Questions about 51358
What is the ZIP+4 code for 51358?
51358 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 51358, you need to look up a specific street address to get them.
What city is 51358?
51358 is assigned to Ruthven, Iowa, in Palo Alto 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.