ZIP Code 66064 — Osawatomie, KS
66064 is a standard (street delivery) ZIP code serving Osawatomie, Kansas, in Miami 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 66064 at a glance
| ZIP code | 66064 |
|---|---|
| Primary city | Osawatomie |
| State | Kansas (KS) |
| County | Miami FIPS 20121 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,992 |
| Coordinates | 38.478290, -94.986880 |
How ZIP+4 works in 66064
The four digits after the hyphen encode a delivery segment inside 66064. 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 66064 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 66064.
| ZIP | City | Distance |
|---|---|---|
| 66042 | Lane, KS | 5.9 mi |
| 66079 | Rantoul, KS | 8 mi |
| 66026 | Fontana, KS | 9.1 mi |
| 66071 | Paola, KS | 9.3 mi |
| 66072 | Parker, KS | 11.1 mi |
| 66033 | Greeley, KS | 11.3 mi |
| 66078 | Princeton, KS | 14.9 mi |
| 66080 | Richmond, KS | 15.4 mi |
| 66040 | La Cygne, KS | 15.9 mi |
| 66092 | Wellsville, KS | 16.1 mi |
| 66014 | Centerville, KS | 17.6 mi |
| 66067 | Ottawa, KS | 18.4 mi |
Questions about 66064
What is the ZIP+4 code for 66064?
66064 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 66064, you need to look up a specific street address to get them.
What city is 66064?
66064 is assigned to Osawatomie, Kansas, in Miami 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.