ZIP Code 52778 — Wilton, IA
52778 is a standard (street delivery) ZIP code serving Wilton, Iowa, in Cedar 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 52778 at a glance
| ZIP code | 52778 |
|---|---|
| Primary city | Wilton |
| State | Iowa (IA) |
| County | Cedar FIPS 19031 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 3,632 |
| Coordinates | 41.611150, -91.000660 |
How ZIP+4 works in 52778
The four digits after the hyphen encode a delivery segment inside 52778. 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 52778 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 52778.
| ZIP | City | Distance |
|---|---|---|
| 52747 | Durant, IA | 4.7 mi |
| 52760 | Moscow, IA | 5.4 mi |
| 52769 | Stockton, IA | 8.2 mi |
| 52720 | Atalissa, IA | 8.6 mi |
| 52765 | New Liberty, IA | 10.1 mi |
| 52721 | Bennett, IA | 10.2 mi |
| 52772 | Tipton, IA | 12 mi |
| 52761 | Muscatine, IA | 12.3 mi |
| 52773 | Walcott, IA | 12.7 mi |
| 52726 | Blue Grass, IA | 13.5 mi |
| 52776 | West Liberty, IA | 14.3 mi |
| 52759 | Montpelier, IA | 14.3 mi |
Questions about 52778
What is the ZIP+4 code for 52778?
52778 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 52778, you need to look up a specific street address to get them.
What city is 52778?
52778 is assigned to Wilton, Iowa, in Cedar 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.