ZIP Code 41139 — Flatwoods, KY
41139 is a standard (street delivery) ZIP code serving Flatwoods, Kentucky, in Greenup 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 41139 at a glance
| ZIP code | 41139 |
|---|---|
| Primary city | Flatwoods |
| State | Kentucky (KY) |
| County | Greenup FIPS 21089 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 8,085 |
| Coordinates | 38.509270, -82.732880 |
How ZIP+4 works in 41139
The four digits after the hyphen encode a delivery segment inside 41139. 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 41139 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 41139.
| ZIP | City | Distance |
|---|---|---|
| 41169 | Russell, KY | 1.4 mi |
| 41183 | Worthington, KY | 2.8 mi |
| 45638 | Ironton, OH | 4.8 mi |
| 41101 | Ashland, KY | 5.1 mi |
| 41102 | Ashland, KY | 6.1 mi |
| 41121 | Argillite, KY | 6.7 mi |
| 45636 | Haverhill, OH | 6.8 mi |
| 41144 | Greenup, KY | 9.8 mi |
| 45629 | Franklin Furnace, OH | 10.7 mi |
| 45680 | South Point, OH | 10.8 mi |
| 45645 | Kitts Hill, OH | 11.7 mi |
| 25507 | Ceredo, WV | 12.4 mi |
Questions about 41139
What is the ZIP+4 code for 41139?
41139 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 41139, you need to look up a specific street address to get them.
What city is 41139?
41139 is assigned to Flatwoods, Kentucky, in Greenup 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.