ZIP Code 42056 — La Center, KY
42056 is a standard (street delivery) ZIP code serving La Center, Kentucky, in Ballard 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 42056 at a glance
| ZIP code | 42056 |
|---|---|
| Primary city | La Center |
| State | Kentucky (KY) |
| County | Ballard FIPS 21007 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,450 |
| Coordinates | 37.110880, -88.984520 |
How ZIP+4 works in 42056
The four digits after the hyphen encode a delivery segment inside 42056. 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 42056 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 42056.
| ZIP | City | Distance |
|---|---|---|
| 42022 | Bandana, KY | 3.2 mi |
| 42024 | Barlow, KY | 4.4 mi |
| 42053 | Kevil, KY | 6 mi |
| 62941 | Grand Chain, IL | 9 mi |
| 42087 | Wickliffe, KY | 9.6 mi |
| 62970 | Olmsted, IL | 9.6 mi |
| 62963 | Mound City, IL | 9.9 mi |
| 62953 | Joppa, IL | 10.1 mi |
| 62996 | Villa Ridge, IL | 10.4 mi |
| 62956 | Karnak, IL | 11.9 mi |
| 42086 | West Paducah, KY | 12 mi |
| 62964 | Mounds, IL | 12.7 mi |
Questions about 42056
What is the ZIP+4 code for 42056?
42056 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 42056, you need to look up a specific street address to get them.
What city is 42056?
42056 is assigned to La Center, Kentucky, in Ballard 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.