ZIP Code 52590 — Seymour, IA
52590 is a standard (street delivery) ZIP code serving Seymour, Iowa, in Wayne 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 52590 at a glance
| ZIP code | 52590 |
|---|---|
| Primary city | Seymour |
| State | Iowa (IA) |
| County | Wayne FIPS 19185 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,464 |
| Coordinates | 40.665400, -93.135940 |
How ZIP+4 works in 52590
The four digits after the hyphen encode a delivery segment inside 52590. 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 52590 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 52590.
| ZIP | City | Distance |
|---|---|---|
| 52583 | Promise City, IA | 9.5 mi |
| 52581 | Plano, IA | 10.4 mi |
| 52549 | Cincinnati, IA | 10.6 mi |
| 64672 | Powersville, MO | 10.9 mi |
| 50060 | Corydon, IA | 11.4 mi |
| 52544 | Centerville, IA | 12.4 mi |
| 50008 | Allerton, IA | 13.1 mi |
| 52574 | Mystic, IA | 13.2 mi |
| 50165 | Millerton, IA | 15.5 mi |
| 63565 | Unionville, MO | 15.8 mi |
| 50052 | Clio, IA | 16.3 mi |
| 64655 | Lucerne, MO | 16.4 mi |
Questions about 52590
What is the ZIP+4 code for 52590?
52590 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 52590, you need to look up a specific street address to get them.
What city is 52590?
52590 is assigned to Seymour, Iowa, in Wayne 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.