ZIP Code 52257 — Luzerne, IA
52257 is a standard (street delivery) ZIP code serving Luzerne, Iowa, in Benton 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 52257 at a glance
| ZIP code | 52257 |
|---|---|
| Primary city | Luzerne |
| State | Iowa (IA) |
| County | Benton FIPS 19011 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 216 |
| Coordinates | 41.918360, -92.177420 |
How ZIP+4 works in 52257
The four digits after the hyphen encode a delivery segment inside 52257. 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 52257 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 52257.
| ZIP | City | Distance |
|---|---|---|
| 52209 | Blairstown, IA | 4.3 mi |
| 52208 | Belle Plaine, IA | 5 mi |
| 52249 | Keystone, IA | 6.6 mi |
| 52346 | Van Horne, IA | 8.2 mi |
| 52354 | Watkins, IA | 9.7 mi |
| 52225 | Elberon, IA | 10.1 mi |
| 52301 | Marengo, IA | 10.1 mi |
| 52215 | Chelsea, IA | 11.5 mi |
| 52232 | Hartwick, IA | 11.6 mi |
| 52348 | Vining, IA | 11.9 mi |
| 52315 | Newhall, IA | 12.1 mi |
| 52251 | Ladora, IA | 14.3 mi |
Questions about 52257
What is the ZIP+4 code for 52257?
52257 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 52257, you need to look up a specific street address to get them.
What city is 52257?
52257 is assigned to Luzerne, Iowa, in Benton 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.