ZIP Code 65666 — Hardenville, MO
65666 is a standard (street delivery) ZIP code serving Hardenville, Missouri, in Ozark 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 65666 at a glance
| ZIP code | 65666 |
|---|---|
| Primary city | Hardenville |
| State | Missouri (MO) |
| County | Ozark FIPS 29153 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Coordinates | 36.578290, -92.360650 |
How ZIP+4 works in 65666
The four digits after the hyphen encode a delivery segment inside 65666. 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 65666 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 65666.
| ZIP | City | Distance |
|---|---|---|
| 65655 | Gainesville, MO | 3.9 mi |
| 65760 | Tecumseh, MO | 5.4 mi |
| 65766 | Udall, MO | 6.2 mi |
| 72623 | Clarkridge, AR | 8.3 mi |
| 65784 | Zanoni, MO | 10.5 mi |
| 65729 | Pontiac, MO | 11.2 mi |
| 72537 | Gamaliel, AR | 11.3 mi |
| 65609 | Bakersfield, MO | 11.6 mi |
| 65618 | Brixey, MO | 12 mi |
| 65626 | Caulfield, MO | 13.5 mi |
| 65676 | Isabella, MO | 13.6 mi |
| 72651 | Midway, AR | 14.6 mi |
Questions about 65666
What is the ZIP+4 code for 65666?
65666 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 65666, you need to look up a specific street address to get them.
What city is 65666?
65666 is assigned to Hardenville, Missouri, in Ozark 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.