ZIP Code 56633 — Cass Lake, MN
56633 is a standard (street delivery) ZIP code serving Cass Lake, Minnesota, in Cass 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 56633 at a glance
| ZIP code | 56633 |
|---|---|
| Primary city | Cass Lake |
| State | Minnesota (MN) |
| County | Cass FIPS 27021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,802 |
| Coordinates | 47.319570, -94.509110 |
How ZIP+4 works in 56633
The four digits after the hyphen encode a delivery segment inside 56633. 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 56633 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 56633.
| ZIP | City | Distance |
|---|---|---|
| 56663 | Pennington, MN | 12.7 mi |
| 56641 | Federal Dam, MN | 14.4 mi |
| 56484 | Walker, MN | 15.4 mi |
| 56626 | Bena, MN | 15.5 mi |
| 56461 | Laporte, MN | 17.5 mi |
| 56681 | Squaw Lake, MN | 19.9 mi |
| 56601 | Bemidji, MN | 20.6 mi |
| 56458 | Lake George, MN | 24.1 mi |
| 56452 | Hackensack, MN | 25.7 mi |
| 56647 | Hines, MN | 26 mi |
| 56433 | Akeley, MN | 26.2 mi |
| 56655 | Longville, MN | 26.6 mi |
Questions about 56633
What is the ZIP+4 code for 56633?
56633 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 56633, you need to look up a specific street address to get them.
What city is 56633?
56633 is assigned to Cass Lake, Minnesota, in Cass 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.