ZIP Code 55808 — Duluth, MN
55808 is a standard (street delivery) ZIP code serving Duluth, 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 55808 at a glance
| ZIP code | 55808 |
|---|---|
| Primary city | Duluth |
| State | Minnesota (MN) |
| County | St. Louis FIPS 27137 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,691 |
| Coordinates | 46.679200, -92.236860 |
How ZIP+4 works in 55808
The four digits after the hyphen encode a delivery segment inside 55808. 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 55808 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.
Other ZIP codes in Duluth
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 55808.
| ZIP | City | Distance |
|---|---|---|
| 55807 | Duluth, MN | 5 mi |
| 55810 | Duluth, MN | 5.8 mi |
| 55733 | Esko, MN | 6.4 mi |
| 54880 | Superior, WI | 7.9 mi |
| 55806 | Duluth, MN | 8 mi |
| 55802 | Duluth, MN | 8.9 mi |
| 55797 | Wrenshall, MN | 9.7 mi |
| 55805 | Duluth, MN | 10.7 mi |
| 55814 | Duluth, MN | 10.9 mi |
| 55811 | Duluth, MN | 11 mi |
| 55812 | Duluth, MN | 11.9 mi |
| 55718 | Carlton, MN | 12.3 mi |
Questions about 55808
What is the ZIP+4 code for 55808?
55808 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 55808, you need to look up a specific street address to get them.
What city is 55808?
55808 is assigned to Duluth, 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.