ZIP Code 66518 — Oketo, KS
66518 is a standard (street delivery) ZIP code serving Oketo, Kansas, in Marshall 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 66518 at a glance
| ZIP code | 66518 |
|---|---|
| Primary city | Oketo |
| State | Kansas (KS) |
| County | Marshall FIPS 20117 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 211 |
| Coordinates | 39.970080, -96.555330 |
How ZIP+4 works in 66518
The four digits after the hyphen encode a delivery segment inside 66518. 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 66518 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 66518.
| ZIP | City | Distance |
|---|---|---|
| 68309 | Barneston, NE | 5.5 mi |
| 68466 | Wymore, NE | 8.2 mi |
| 68381 | Liberty, NE | 8.5 mi |
| 66406 | Beattie, KS | 8.9 mi |
| 66508 | Marysville, KS | 9 mi |
| 66438 | Home, KS | 9.9 mi |
| 66541 | Summerfield, KS | 11 mi |
| 66412 | Bremen, KS | 12.5 mi |
| 68318 | Blue Springs, NE | 13.7 mi |
| 68323 | Burchard, NE | 14.8 mi |
| 68415 | Odell, NE | 15.5 mi |
| 66403 | Axtell, KS | 15.9 mi |
Questions about 66518
What is the ZIP+4 code for 66518?
66518 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 66518, you need to look up a specific street address to get them.
What city is 66518?
66518 is assigned to Oketo, Kansas, in Marshall 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.