ZIP Code 66717 — Buffalo, KS
66717 is a standard (street delivery) ZIP code serving Buffalo, Kansas, in Wilson 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 66717 at a glance
| ZIP code | 66717 |
|---|---|
| Primary city | Buffalo |
| State | Kansas (KS) |
| County | Wilson FIPS 20205 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 467 |
| Coordinates | 37.696710, -95.686720 |
How ZIP+4 works in 66717
The four digits after the hyphen encode a delivery segment inside 66717. 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 66717 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 66717.
| ZIP | City | Distance |
|---|---|---|
| 66714 | Benedict, KS | 4.5 mi |
| 66710 | Altoona, KS | 10.4 mi |
| 66783 | Yates Center, KS | 12.7 mi |
| 66720 | Chanute, KS | 12.9 mi |
| 66736 | Fredonia, KS | 13.8 mi |
| 66748 | Humboldt, KS | 15.4 mi |
| 66761 | Piqua, KS | 16.4 mi |
| 66777 | Toronto, KS | 16.7 mi |
| 66776 | Thayer, KS | 19.1 mi |
| 66757 | Neodesha, KS | 19.4 mi |
| 67047 | Fall River, KS | 20.4 mi |
| 66749 | Iola, KS | 22.4 mi |
Questions about 66717
What is the ZIP+4 code for 66717?
66717 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 66717, you need to look up a specific street address to get them.
What city is 66717?
66717 is assigned to Buffalo, Kansas, in Wilson 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.