ZIP Code 56167 — Round Lake, MN
56167 is a standard (street delivery) ZIP code serving Round Lake, Minnesota, in Jackson 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 56167 at a glance
| ZIP code | 56167 |
|---|---|
| Primary city | Round Lake |
| State | Minnesota (MN) |
| County | Jackson FIPS 27063 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 555 |
| Coordinates | 43.550820, -95.405240 |
How ZIP+4 works in 56167
The four digits after the hyphen encode a delivery segment inside 56167. 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 56167 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 56167.
| ZIP | City | Distance |
|---|---|---|
| 51345 | Harris, IA | 9.3 mi |
| 51347 | Lake Park, IA | 9.8 mi |
| 56187 | Worthington, MN | 10.3 mi |
| 56150 | Lakefield, MN | 11.2 mi |
| 56119 | Brewster, MN | 11.5 mi |
| 56161 | Okabena, MN | 11.5 mi |
| 51354 | Ocheyedan, IA | 11.8 mi |
| 56117 | Bigelow, MN | 14.1 mi |
| 51355 | Okoboji, IA | 17.3 mi |
| 51360 | Spirit Lake, IA | 17.8 mi |
| 51331 | Arnolds Park, IA | 18.8 mi |
| 51249 | Sibley, IA | 19 mi |
Questions about 56167
What is the ZIP+4 code for 56167?
56167 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 56167, you need to look up a specific street address to get them.
What city is 56167?
56167 is assigned to Round Lake, Minnesota, in Jackson 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.