ZIP Code 56357 — Oak Park, MN
56357 is a standard (street delivery) ZIP code serving Oak Park, Minnesota, in Benton 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 56357 at a glance
| ZIP code | 56357 |
|---|---|
| Primary city | Oak Park |
| State | Minnesota (MN) |
| County | Benton FIPS 27009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,230 |
| Coordinates | 45.696840, -93.800700 |
How ZIP+4 works in 56357
The four digits after the hyphen encode a delivery segment inside 56357. 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 56357 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 56357.
| ZIP | City | Distance |
|---|---|---|
| 56330 | Foreston, MN | 4.4 mi |
| 56329 | Foley, MN | 5.1 mi |
| 56363 | Pease, MN | 7.1 mi |
| 56353 | Milaca, MN | 10.9 mi |
| 55371 | Princeton, MN | 12.9 mi |
| 56313 | Bock, MN | 13.4 mi |
| 56379 | Sauk Rapids, MN | 14.2 mi |
| 56304 | Saint Cloud, MN | 16.9 mi |
| 55319 | Clear Lake, MN | 17 mi |
| 55017 | Dalbo, MN | 17.9 mi |
| 56367 | Rice, MN | 18.4 mi |
| 55308 | Becker, MN | 18.5 mi |
Questions about 56357
What is the ZIP+4 code for 56357?
56357 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 56357, you need to look up a specific street address to get them.
What city is 56357?
56357 is assigned to Oak Park, Minnesota, in Benton 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.