ZIP Code 55318 — Chaska, MN
55318 is a standard (street delivery) ZIP code serving Chaska, Minnesota, in Carver 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 55318 at a glance
| ZIP code | 55318 |
|---|---|
| Primary city | Chaska |
| State | Minnesota (MN) |
| County | Carver FIPS 27019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 30,369 |
| Coordinates | 44.811690, -93.637030 |
How ZIP+4 works in 55318
The four digits after the hyphen encode a delivery segment inside 55318. 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 55318 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 55318.
| ZIP | City | Distance |
|---|---|---|
| 55386 | Victoria, MN | 3.4 mi |
| 55317 | Chanhassen, MN | 5.3 mi |
| 55331 | Excelsior, MN | 6.3 mi |
| 55315 | Carver, MN | 6.9 mi |
| 55379 | Shakopee, MN | 7.1 mi |
| 55375 | Saint Bonifacius, MN | 7.4 mi |
| 55387 | Waconia, MN | 7.6 mi |
| 55322 | Cologne, MN | 7.8 mi |
| 55347 | Eden Prairie, MN | 8.4 mi |
| 55384 | Spring Park, MN | 8.6 mi |
| 55346 | Eden Prairie, MN | 8.9 mi |
| 55364 | Mound, MN | 9 mi |
Questions about 55318
What is the ZIP+4 code for 55318?
55318 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 55318, you need to look up a specific street address to get them.
What city is 55318?
55318 is assigned to Chaska, Minnesota, in Carver 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.