ZIP Code 66776 — Thayer, KS
66776 is a standard (street delivery) ZIP code serving Thayer, Kansas, in Neosho 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 66776 at a glance
| ZIP code | 66776 |
|---|---|
| Primary city | Thayer |
| State | Kansas (KS) |
| County | Neosho FIPS 20133 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,524 |
| Coordinates | 37.468480, -95.488930 |
How ZIP+4 works in 66776
The four digits after the hyphen encode a delivery segment inside 66776. 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 66776 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 66776.
| ZIP | City | Distance |
|---|---|---|
| 66740 | Galesburg, KS | 6.7 mi |
| 67341 | Dennis, KS | 9.2 mi |
| 66710 | Altoona, KS | 9.7 mi |
| 66757 | Neodesha, KS | 12 mi |
| 66720 | Chanute, KS | 12.4 mi |
| 67335 | Cherryvale, KS | 13.2 mi |
| 66733 | Erie, KS | 15.4 mi |
| 67357 | Parsons, KS | 15.7 mi |
| 67363 | Sycamore, KS | 15.8 mi |
| 66714 | Benedict, KS | 16.4 mi |
| 67354 | Mound Valley, KS | 18.5 mi |
| 66771 | Saint Paul, KS | 18.7 mi |
Questions about 66776
What is the ZIP+4 code for 66776?
66776 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 66776, you need to look up a specific street address to get them.
What city is 66776?
66776 is assigned to Thayer, Kansas, in Neosho 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.