ZIP Code 56639 — Effie, MN
56639 is a standard (street delivery) ZIP code serving Effie, Minnesota, in Itasca 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 56639 at a glance
| ZIP code | 56639 |
|---|---|
| Primary city | Effie |
| State | Minnesota (MN) |
| County | Itasca FIPS 27061 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 359 |
| Coordinates | 47.902750, -93.533990 |
How ZIP+4 works in 56639
The four digits after the hyphen encode a delivery segment inside 56639. 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 56639 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 56639.
| ZIP | City | Distance |
|---|---|---|
| 56628 | Bigfork, MN | 14.3 mi |
| 56688 | Wirt, MN | 18.9 mi |
| 56657 | Marcell, MN | 23.1 mi |
| 56658 | Margie, MN | 23.5 mi |
| 56637 | Talmoon, MN | 24.2 mi |
| 55772 | Nett Lake, MN | 24.6 mi |
| 56653 | Littlefork, MN | 26.4 mi |
| 56680 | Spring Lake, MN | 26.6 mi |
| 55781 | Side Lake, MN | 26.7 mi |
| 56659 | Max, MN | 29.7 mi |
| 56627 | Big Falls, MN | 30.9 mi |
| 55769 | Nashwauk, MN | 33.3 mi |
Questions about 56639
What is the ZIP+4 code for 56639?
56639 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 56639, you need to look up a specific street address to get them.
What city is 56639?
56639 is assigned to Effie, Minnesota, in Itasca 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.