ZIP Code 55018 — Dennison, MN
55018 is a standard (street delivery) ZIP code serving Dennison, Minnesota, in Goodhue 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 55018 at a glance
| ZIP code | 55018 |
|---|---|
| Primary city | Dennison |
| State | Minnesota (MN) |
| County | Goodhue FIPS 27049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 969 |
| Coordinates | 44.418320, -92.988220 |
How ZIP+4 works in 55018
The four digits after the hyphen encode a delivery segment inside 55018. 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 55018 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 55018.
| ZIP | City | Distance |
|---|---|---|
| 55053 | Nerstrand, MN | 6.1 mi |
| 55009 | Cannon Falls, MN | 7.5 mi |
| 55065 | Randolph, MN | 9 mi |
| 55057 | Northfield, MN | 10.1 mi |
| 55946 | Kenyon, MN | 10.9 mi |
| 55983 | Wanamingo, MN | 12.4 mi |
| 55019 | Dundas, MN | 12.9 mi |
| 55031 | Hampton, MN | 13.1 mi |
| 55024 | Farmington, MN | 16.2 mi |
| 55021 | Faribault, MN | 16.4 mi |
| 55992 | Zumbrota, MN | 16.9 mi |
| 55085 | Vermillion, MN | 17.6 mi |
Questions about 55018
What is the ZIP+4 code for 55018?
55018 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 55018, you need to look up a specific street address to get them.
What city is 55018?
55018 is assigned to Dennison, Minnesota, in Goodhue 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.