ZIP Code 50254 — Thayer, IA
50254 is a standard (street delivery) ZIP code serving Thayer, 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 50254 at a glance
| ZIP code | 50254 |
|---|---|
| Primary city | Thayer |
| State | Iowa (IA) |
| County | Union FIPS 19175 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 296 |
| Coordinates | 40.990450, -94.069170 |
How ZIP+4 works in 50254
The four digits after the hyphen encode a delivery segment inside 50254. 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 50254 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 50254.
| ZIP | City | Distance |
|---|---|---|
| 50174 | Murray, IA | 6.5 mi |
| 50830 | Afton, IA | 6.7 mi |
| 50831 | Arispe, IA | 8.5 mi |
| 50074 | Ellston, IA | 9.2 mi |
| 50149 | Lorimor, IA | 11.1 mi |
| 50861 | Shannon City, IA | 11.2 mi |
| 50863 | Tingley, IA | 11.3 mi |
| 50108 | Grand River, IA | 12.8 mi |
| 50262 | Van Wert, IA | 15.9 mi |
| 50213 | Osceola, IA | 16.1 mi |
| 50155 | Macksburg, IA | 16.7 mi |
| 50222 | Peru, IA | 16.7 mi |
Questions about 50254
What is the ZIP+4 code for 50254?
50254 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 50254, you need to look up a specific street address to get them.
What city is 50254?
50254 is assigned to Thayer, 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.