ZIP Code 55910 — Altura, MN
55910 is a standard (street delivery) ZIP code serving Altura, Minnesota, in Winona 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 55910 at a glance
| ZIP code | 55910 |
|---|---|
| Primary city | Altura |
| State | Minnesota (MN) |
| County | Winona FIPS 27169 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,171 |
| Coordinates | 44.132850, -91.972850 |
How ZIP+4 works in 55910
The four digits after the hyphen encode a delivery segment inside 55910. 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 55910 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 55910.
| ZIP | City | Distance |
|---|---|---|
| 55969 | Rollingstone, MN | 5.9 mi |
| 55964 | Plainview, MN | 9.3 mi |
| 55959 | Minnesota City, MN | 9.5 mi |
| 55945 | Kellogg, MN | 10.2 mi |
| 55972 | Saint Charles, MN | 10.3 mi |
| 55929 | Dover, MN | 13.7 mi |
| 54622 | Cochrane, WI | 13.9 mi |
| 55979 | Utica, MN | 14.5 mi |
| 55952 | Lewiston, MN | 14.5 mi |
| 54629 | Fountain City, WI | 15.3 mi |
| 55981 | Wabasha, MN | 15.9 mi |
| 55932 | Elgin, MN | 16.2 mi |
Questions about 55910
What is the ZIP+4 code for 55910?
55910 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 55910, you need to look up a specific street address to get them.
What city is 55910?
55910 is assigned to Altura, Minnesota, in Winona 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.