ZIP Code 68634 — Duncan, NE
68634 is a standard (street delivery) ZIP code serving Duncan, Nebraska, in Platte 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 68634 at a glance
| ZIP code | 68634 |
|---|---|
| Primary city | Duncan |
| State | Nebraska (NE) |
| County | Platte FIPS 31141 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 635 |
| Coordinates | 41.390730, -97.506590 |
How ZIP+4 works in 68634
The four digits after the hyphen encode a delivery segment inside 68634. 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 68634 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 68634.
| ZIP | City | Distance |
|---|---|---|
| 68601 | Columbus, NE | 7.2 mi |
| 68647 | Monroe, NE | 10.7 mi |
| 68653 | Platte Center, NE | 11.4 mi |
| 68663 | Silver Creek, NE | 11.4 mi |
| 68651 | Osceola, NE | 12 mi |
| 68662 | Shelby, NE | 13.5 mi |
| 68640 | Genoa, NE | 14.6 mi |
| 68624 | Bellwood, NE | 14.7 mi |
| 68658 | Rising City, NE | 17.2 mi |
| 68666 | Stromsburg, NE | 20.3 mi |
| 68642 | Humphrey, NE | 20.5 mi |
| 68628 | Clarks, NE | 21.2 mi |
Questions about 68634
What is the ZIP+4 code for 68634?
68634 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 68634, you need to look up a specific street address to get them.
What city is 68634?
68634 is assigned to Duncan, Nebraska, in Platte 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.