ZIP Code 41366 — Rousseau, KY
41366 is a standard (street delivery) ZIP code serving Rousseau, Kentucky, in Breathitt 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 41366 at a glance
| ZIP code | 41366 |
|---|---|
| Primary city | Rousseau |
| State | Kentucky (KY) |
| County | Breathitt FIPS 21025 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Coordinates | 37.624720, -83.219590 |
How ZIP+4 works in 41366
The four digits after the hyphen encode a delivery segment inside 41366. 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 41366 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 41366.
| ZIP | City | Distance |
|---|---|---|
| 41310 | Bays, KY | 2.1 mi |
| 41385 | Vancleve, KY | 6.6 mi |
| 41339 | Jackson, KY | 7.6 mi |
| 41465 | Salyersville, KY | 10.3 mi |
| 41317 | Clayhole, KY | 11.4 mi |
| 41408 | Cannel City, KY | 12.3 mi |
| 41464 | Royalton, KY | 13.7 mi |
| 41348 | Lost Creek, KY | 14.7 mi |
| 41332 | Hazel Green, KY | 14.8 mi |
| 41352 | Mize, KY | 15.1 mi |
| 41367 | Rowdy, KY | 15.2 mi |
| 41632 | Gunlock, KY | 15.6 mi |
Questions about 41366
What is the ZIP+4 code for 41366?
41366 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 41366, you need to look up a specific street address to get them.
What city is 41366?
41366 is assigned to Rousseau, Kentucky, in Breathitt 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.