ZIP Code 55939 — Harmony, MN
55939 is a standard (street delivery) ZIP code serving Harmony, Minnesota, in Fillmore 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 55939 at a glance
| ZIP code | 55939 |
|---|---|
| Primary city | Harmony |
| State | Minnesota (MN) |
| County | Fillmore FIPS 27045 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,973 |
| Coordinates | 43.546820, -92.081440 |
How ZIP+4 works in 55939
The four digits after the hyphen encode a delivery segment inside 55939. 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 55939 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 55939.
| ZIP | City | Distance |
|---|---|---|
| 55965 | Preston, MN | 6.2 mi |
| 55922 | Canton, MN | 9.4 mi |
| 52136 | Cresco, IA | 12.2 mi |
| 55949 | Lanesboro, MN | 13.4 mi |
| 55935 | Fountain, MN | 14 mi |
| 52155 | Lime Springs, IA | 14.1 mi |
| 55954 | Mabel, MN | 14.9 mi |
| 55990 | Wykoff, MN | 15.4 mi |
| 52134 | Chester, IA | 16.8 mi |
| 55975 | Spring Valley, MN | 17.1 mi |
| 52165 | Ridgeway, IA | 17.3 mi |
| 55962 | Peterson, MN | 19.1 mi |
Questions about 55939
What is the ZIP+4 code for 55939?
55939 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 55939, you need to look up a specific street address to get them.
What city is 55939?
55939 is assigned to Harmony, Minnesota, in Fillmore 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.