ZIP Code 55790 — Tower, MN
55790 is a standard (street delivery) ZIP code serving Tower, Minnesota, in St. Louis 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 55790 at a glance
| ZIP code | 55790 |
|---|---|
| Primary city | Tower |
| State | Minnesota (MN) |
| County | St. Louis FIPS 27137 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,847 |
| Coordinates | 47.828800, -92.375960 |
How ZIP+4 works in 55790
The four digits after the hyphen encode a delivery segment inside 55790. 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 55790 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 55790.
| ZIP | City | Distance |
|---|---|---|
| 55782 | Soudan, MN | 7.9 mi |
| 55732 | Embarrass, MN | 12.6 mi |
| 55792 | Virginia, MN | 16.5 mi |
| 55710 | Britt, MN | 19.4 mi |
| 55703 | Angora, MN | 19.8 mi |
| 55708 | Biwabik, MN | 20.3 mi |
| 55706 | Babbitt, MN | 22.3 mi |
| 55723 | Cook, MN | 22.8 mi |
| 55741 | Gilbert, MN | 25.6 mi |
| 55705 | Aurora, MN | 25.6 mi |
| 55768 | Mountain Iron, MN | 25.7 mi |
| 55750 | Hoyt Lakes, MN | 27 mi |
Questions about 55790
What is the ZIP+4 code for 55790?
55790 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 55790, you need to look up a specific street address to get them.
What city is 55790?
55790 is assigned to Tower, Minnesota, in St. Louis 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.