ZIP Code 42236 — Herndon, KY
42236 is a standard (street delivery) ZIP code serving Herndon, Kentucky, in Christian 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 42236 at a glance
| ZIP code | 42236 |
|---|---|
| Primary city | Herndon |
| State | Kentucky (KY) |
| County | Christian FIPS 21047 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 931 |
| Coordinates | 36.719600, -87.612250 |
How ZIP+4 works in 42236
The four digits after the hyphen encode a delivery segment inside 42236. 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 42236 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 42236.
| ZIP | City | Distance |
|---|---|---|
| 42254 | La Fayette, KY | 4.1 mi |
| 42262 | Oak Grove, KY | 9.5 mi |
| 42223 | Fort Campbell, KY | 9.6 mi |
| 42232 | Gracey, KY | 10.5 mi |
| 37023 | Big Rock, TN | 13.3 mi |
| 42240 | Hopkinsville, KY | 14.1 mi |
| 42211 | Cadiz, KY | 14.2 mi |
| 42266 | Pembroke, KY | 14.3 mi |
| 37028 | Bumpus Mills, TN | 15 mi |
| 37042 | Clarksville, TN | 15.2 mi |
| 37191 | Woodlawn, TN | 15.4 mi |
| 37079 | Indian Mound, TN | 16.6 mi |
Questions about 42236
What is the ZIP+4 code for 42236?
42236 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 42236, you need to look up a specific street address to get them.
What city is 42236?
42236 is assigned to Herndon, Kentucky, in Christian 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.