ZIP Code 40357 — North Middletown, KY
40357 is a standard (street delivery) ZIP code serving North Middletown, Kentucky, in Bourbon 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 40357 at a glance
| ZIP code | 40357 |
|---|---|
| Primary city | North Middletown |
| State | Kentucky (KY) |
| County | Bourbon FIPS 21017 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 81 |
| Coordinates | 38.145190, -84.108430 |
How ZIP+4 works in 40357
The four digits after the hyphen encode a delivery segment inside 40357. 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 40357 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 40357.
| ZIP | City | Distance |
|---|---|---|
| 40361 | Paris, KY | 7.5 mi |
| 40353 | Mount Sterling, KY | 10.3 mi |
| 40348 | Millersburg, KY | 11.1 mi |
| 40374 | Sharpsburg, KY | 12.1 mi |
| 40391 | Winchester, KY | 12.3 mi |
| 40311 | Carlisle, KY | 13.2 mi |
| 40516 | Lexington, KY | 14.8 mi |
| 40350 | Moorefield, KY | 16.6 mi |
| 40509 | Lexington, KY | 17.5 mi |
| 40360 | Owingsville, KY | 18.6 mi |
| 40337 | Jeffersonville, KY | 19.1 mi |
| 40505 | Lexington, KY | 19.8 mi |
Questions about 40357
What is the ZIP+4 code for 40357?
40357 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 40357, you need to look up a specific street address to get them.
What city is 40357?
40357 is assigned to North Middletown, Kentucky, in Bourbon 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.