ZIP Code 50861 — Shannon City, IA
50861 is a standard (street delivery) ZIP code serving Shannon City, Iowa, in Union 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 50861 at a glance
| ZIP code | 50861 |
|---|---|
| Primary city | Shannon City |
| State | Iowa (IA) |
| County | Union FIPS 19175 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 311 |
| Coordinates | 40.911630, -94.256850 |
How ZIP+4 works in 50861
The four digits after the hyphen encode a delivery segment inside 50861. 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 50861 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 50861.
| ZIP | City | Distance |
|---|---|---|
| 50831 | Arispe, IA | 3.1 mi |
| 50863 | Tingley, IA | 6.2 mi |
| 50845 | Diagonal, IA | 8.2 mi |
| 50830 | Afton, IA | 8.5 mi |
| 50074 | Ellston, IA | 10.2 mi |
| 50254 | Thayer, IA | 11.2 mi |
| 50801 | Creston, IA | 13.6 mi |
| 50842 | Cromwell, IA | 13.9 mi |
| 50840 | Clearfield, IA | 14.4 mi |
| 50851 | Lenox, IA | 14.6 mi |
| 50835 | Benton, IA | 15.2 mi |
| 50854 | Mount Ayr, IA | 15.4 mi |
Questions about 50861
What is the ZIP+4 code for 50861?
50861 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 50861, you need to look up a specific street address to get them.
What city is 50861?
50861 is assigned to Shannon City, Iowa, in Union 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.