ZIP Code 55371 — Princeton, MN
55371 is a standard (street delivery) ZIP code serving Princeton, Minnesota, in Mille Lacs 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 55371 at a glance
| ZIP code | 55371 |
|---|---|
| Primary city | Princeton |
| State | Minnesota (MN) |
| County | Mille Lacs FIPS 27095 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 18,103 |
| Coordinates | 45.576770, -93.595810 |
How ZIP+4 works in 55371
The four digits after the hyphen encode a delivery segment inside 55371. 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 55371 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 55371.
| ZIP | City | Distance |
|---|---|---|
| 55398 | Zimmerman, MN | 8.2 mi |
| 56363 | Pease, MN | 8.7 mi |
| 55017 | Dalbo, MN | 10.3 mi |
| 56357 | Oak Park, MN | 12.9 mi |
| 56330 | Foreston, MN | 14.1 mi |
| 56313 | Bock, MN | 14.5 mi |
| 55070 | Saint Francis, MN | 15.2 mi |
| 56353 | Milaca, MN | 15.2 mi |
| 55308 | Becker, MN | 15.4 mi |
| 55309 | Big Lake, MN | 15.4 mi |
| 55008 | Cambridge, MN | 15.9 mi |
| 55330 | Elk River, MN | 16.8 mi |
Questions about 55371
What is the ZIP+4 code for 55371?
55371 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 55371, you need to look up a specific street address to get them.
What city is 55371?
55371 is assigned to Princeton, Minnesota, in Mille Lacs 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.