ZIP Code 51048 — Pierson, IA
51048 is a standard (street delivery) ZIP code serving Pierson, Iowa, in Woodbury 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 51048 at a glance
| ZIP code | 51048 |
|---|---|
| Primary city | Pierson |
| State | Iowa (IA) |
| County | Woodbury FIPS 19193 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 435 |
| Coordinates | 42.579630, -95.864120 |
How ZIP+4 works in 51048
The four digits after the hyphen encode a delivery segment inside 51048. 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 51048 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 51048.
| ZIP | City | Distance |
|---|---|---|
| 51028 | Kingsley, IA | 6.6 mi |
| 51061 | Washta, IA | 7.3 mi |
| 51016 | Correctionville, IA | 8.3 mi |
| 51049 | Quimby, IA | 11.7 mi |
| 51039 | Moville, IA | 12.8 mi |
| 51018 | Cushing, IA | 13.1 mi |
| 51004 | Anthon, IA | 14.3 mi |
| 51035 | Marcus, IA | 14.3 mi |
| 51050 | Remsen, IA | 15.5 mi |
| 51014 | Cleghorn, IA | 16.1 mi |
| 51025 | Holstein, IA | 16.5 mi |
| 51030 | Lawton, IA | 17.7 mi |
Questions about 51048
What is the ZIP+4 code for 51048?
51048 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 51048, you need to look up a specific street address to get them.
What city is 51048?
51048 is assigned to Pierson, Iowa, in Woodbury 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.