ZIP Code 50531 — Dolliver, IA
50531 is a standard (street delivery) ZIP code serving Dolliver, Iowa, in Emmet 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 50531 at a glance
| ZIP code | 50531 |
|---|---|
| Primary city | Dolliver |
| State | Iowa (IA) |
| County | Emmet FIPS 19063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 325 |
| Coordinates | 43.458410, -94.614170 |
How ZIP+4 works in 50531
The four digits after the hyphen encode a delivery segment inside 50531. 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 50531 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 50531.
| ZIP | City | Distance |
|---|---|---|
| 56121 | Ceylon, MN | 5.5 mi |
| 50514 | Armstrong, IA | 7.7 mi |
| 56127 | Dunnell, MN | 10.1 mi |
| 51334 | Estherville, IA | 10.4 mi |
| 50578 | Ringsted, IA | 11.4 mi |
| 51365 | Wallingford, IA | 12.1 mi |
| 56031 | Fairmont, MN | 13.5 mi |
| 56181 | Welcome, MN | 15.3 mi |
| 50590 | Swea City, IA | 16 mi |
| 51342 | Graettinger, IA | 16.1 mi |
| 56171 | Sherburn, MN | 16.2 mi |
| 51363 | Superior, IA | 16.7 mi |
Questions about 50531
What is the ZIP+4 code for 50531?
50531 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 50531, you need to look up a specific street address to get them.
What city is 50531?
50531 is assigned to Dolliver, Iowa, in Emmet 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.